Wastewater Treatment

November 18, 2022

Zero Liquid Discharge (ZLD) Plants – An Effective Wastewater Treatment Solution

A technological approach to purifying water in which all water is recovered and contaminants are converted to solid waste is known as “zero liquid discharge.” ZLD is the most challenging goal to attain since recovery costs and challenges increase as wastewater concentrations grow. Although many water treatment systems strive to boost freshwater recovery and minimize waste. Concentrations of salinity, organics, and scaling compounds, all rise, adding to the expense of regulating these increases. Combining water treatment technologies that can handle wastewater when the toxins are concentrated allows for ZLD.

With so many benefits to offer from a ZLD one becomes curious to know about it keenly and contribute to the environment. Let’s settle your curiosity and know the zero liquid discharge more elaborately!

Zero liquid discharge plant:

You can turn your waste into no-waste by using a zero-liquid discharge plant. These sturdy, portable systems handle wastewater from industrial processes and salvage priceless goods from recycling procedures. Materials are successfully separated from water or other wet materials, and they are then converted to solid waste that may be sold, reused, or disposed of more effectively. ZLD systems are advantageous to the environment and your bottom line, and they are simple to modify to match your changing demands and regulatory requirements.

A ZLD treatment system, as the name indicates, uses cutting-edge modern water treatment procedures to reduce liquid waste at the conclusion of your industrial process to zero. A zero Liquid Discharge treatment system that is effective and properly thought out should be able to:

  • Adapt the fluctuations in the flow and contamination of waste
  • Allow for necessary changes to chemical amounts
  • More of your liquid waste can be recovered for reuse.
  • Treat your waste to recover valuable byproducts.
  • Create a solid or dry cake for disposal.

Your business will be able to comply with strict effluent standards and Electric Power Generating Effluent Guidelines with the use of a ZLD treatment system. Just bear in mind that the criteria for your facility will change depending on whether you are discharging to the environment under a National Pollutant Discharge Elimination System or into a publicly owned treatment works.

What components make up a fundamental ZLD plant?

The precise parts of a ZLD treatment system will primarily rely on

(1) Amount of dissolved material present in the waste,

(2) Flow rate needed for the system, and

(3) What particular pollutants are there. But often, a fundamental ZLD treatment system consists of some combination of:

  • A clarifier or reactor to remove hardness, metals, and silica
  • Chemical feed to aid in the coagulation, flocculation, or precipitation of any metals and suspended solids
  • A filter press beside an evaporator or after pretreatment concentrates secondary solid waste.
  • UF: Ultrafiltration (UF) to eliminate any traces of suspended particles that are still present and stop fouling, scaling, and/or corrosion later in the treatment process.
  • RO: Brine concentrators to further concentrate the reject RO stream or reject from electrodialysis to further concentrate the dissolved solids removed by reverse osmosis (RO), which removes the majority of dissolved solids from the water stream in the main phases of concentration.
  • Evaporator: In the final stages of waste concentration before the crystallizer, an evaporator is used to vaporize access water.
  • Crystallizer: Using a crystallizer, boil out any residual liquid to produce a dry, solid cake that may be disposed of.

These standard components are sufficient depending on the requirements of your plant and process, but if your plant needs a system that offers a little bit more customization, you could need to add additional features or technologies. ZLD is a highly customized process because of the wide range of industries it is used in and the many waste streams it produces, and these add-ons will vary depending on your facility’s specific requirements.

What Netsol offers!

Our international service network employs devoted experts that are informed about your sector. Whenever and wherever you need parts or assistance, we are here to provide it.

For maximum uptime, availability, and optimization, Netsol takes care of all your needs throughout the equipment’s life cycle, including setup, maintenance, support, and monitoring services.

For any other support, inquiries, or product purchases, call on +91-9650608473 or email at enquiry@netsolwater.com

You may also read this How does reverse osmosis purifies water?


July 19, 2022

According to the CPCB‘s legislative regulations, numerous infrastructures such as apartments, commercial construction projects, educational institutions, townships, and area development projects that meet specified conditions must include sewage treatment plants. To ensure effective and safe operation of the machinery, the guideline regulations address factors such as STP site, STP technology to adopt, STP functioning, and STP maintenance.

Treated Sewage Standards by STP

The treated sewage by a sewage treatment plant should meet the following standards.

S. No. Parameter Required Standards
1 pH 6.5-8.5
2 BOD(5th day) <10mg/l
3 COD <50mg/l
4 Suspended Solids <10mg/l
5 Ammoniacal Nitrogen <5mg/l
6 Total Nitrogen <5mg/l
7 Fecal Coliform <100 MPN/100 ml

CPCB New Norms for Treated Sewage Standards by STP

Which are the Indian standards for sewage disposal?

Sensor installation guidelines

Sensors for monitoring sewage parameters such as BOD, COD, TSS, flow, and pH are required. The following are the CPCB’s suggested sensor types and communication protocols.

Parameter Measurement Type Sensor Type Communication protocol
pH Inline Ion Selective Glass Electrodes RS 485 Communication with Modbus
TSS Inline Turbidity to TSS correlation with
Nephelometric technique
RS 485 Communication with Modbus
BOD Inline UV-Vis Spectrophotometry
& combustion(Double beam
with entire spectrum scanning
RS 485 Communication with Modbus
COD Inline UV-Vis Spectrophotometry
& combustion(Double beam
with entire spectrum scanning
RS 485 Communication with Modbus
Flow Inline Electromagnetic Flow Measurement RS 485 Communication with Modbus

Sewage Treatment Plant Manufacturer

The Technology of STP

The approved STP technologies to go with are-

A. Activated Sludge Process(ASP) (only when above 500 KLD sewage is generated).

B. Membrane Bio Reactor(MBR)

C. Moving Bed Bio Reactor(MBBR)

You Can call or message  us any time as we one of the leading sewage treatment plant manufacturer in India having world class technology of wastewater treatment. Call now: 09605608473

Commercial RO Plant Range 50 LPH-2000 lph price 35000

July 12, 2022

There are several operating costs involved with the operation and treatment of wastewater. Operating costs are the charges related to the conservation, performing and covering of the factory. And, these costs can add up to 50 of the total periodic costs. It’s important to estimate the affiliated operating costs before getting a wastewater treatment factory. Then, we’ve calculated an approximate division of expenditure for your better understanding.

What are the different kind of operating costs involved in wastewater treatment?

Major factors that affect operation costs are

  1. Size and capacity of the factory
  2. Topography and geographical position of the factory
  3. Characteristics of the wastewater generated
  4. Technologies and the kind of treatment system
  5. system of disposal used
  6. Force of energy
  7. Degree of robotization
  8. Organisation and conservation of the factory


The pool at the factory is one of the major factors that have a major influence on the operating costs. And, the number of working staff employed at the factory depends on the following

  1. The scale of the factory
  2. The treatment procedure and systems
  3. The degree of robotization
  4. The effectiveness of the labor force


The costs for energy cover nearly 10- 30 of the total operating costs. The following are the areas where energy gets consumed in a wastewater treatment factory and adds up to the total costs

  1. Pumping Stations
  2. defenses
  3. Aerated Beach Traps
  4. Primary Sedimentation Tanks
  5. Aeration Tanks
  6. Secondary Sedimentation Tanks
  7. Thickener
  8. Sludge Dewatering bias
  9. Digestion

Disposal is an important aspect when calculating the operating costs. It includes the costs involved in the disposal of sewage sludge, wireworks, beach and external waste.
These costs can differ between 15 and 50 of the total operating costs. Generally, they largely depend on

The size of the STP Plant

  1. National regulations for the disposal of organic accoutrements like sewage sludge, etc.
  2. Original conditions and request price conditions
  3. Chemicals and Accoutrements Used
  4. Chemicals and accoutrements take up to 5- 7 of the total operating costs. Their costs substantially depend on
  5. The characteristics of the wastewater and its discharge
  6. The named chemicals
  7. Amounts kept in stock and copping deals
  8. The request situation and the price structure of the chemicals

* Approximate Data

Eclectic costs are the costs which largely depend on the type of wastewater treatment factory and can range between 5 and 15 of the total operating costs. These are

  1. Pollution Charges
  2. executive costs like insurances, office outfit etc.
  3. Rents and vacancies
  4. External costs for consultations, conservation workshop, laboratory analysis, etc.

We at Netsol Water one of the India’s largest and latest technology driven sewage treatment plant manufacturers. Our STP plant available with different range from 2KLD and up-to 10 MLD. Call Us at : +91-9605068473 for any enquiry or product related query.

July 12, 2022

The current epidemic has majorly impacted the artificial force chains encyclopedically. And, it’s posing severe challenges for the pulp and paper assiduity each over the world. It includes companies that produce pulp, paper, paperboard and several other cellulose- grounded products. The sector involves colorful fields similar as husbandry, forestry, biology, chemicals, distribution, and transportation. therefore, enwrapping an important position in the global frugality.
With the spread of Coronavirus and closing down of services, sodalities and seminaries due to the lockdown, the demand for copier paper and printing paper has seen a notable downfall.
still, on the other hand, it has also handed an unusual possibility for the pulp and paper manufacturing sector related to rising demand for particular hygiene paper products, food packaging products, corrugated packaging accoutrements , paper for medical inventories, etc.

The Rising Demand for Pulp & Paper Products

Hygiene affiliated paper products

  1. The unforeseen demand for these products is largely credited to the growing mindfulness among the public related to particular safety and hygiene.
  2. It includes disposable paper apkins, detergent wipes, face masks, disposal paper undergarments and other particular hygiene- related products.

Paper- grounded medicinal material

  1.  Paper can play a special type of carrier endowed with functions similar as filtration, adsorption, antibacterial and discovery by chemical, physical or natural design which can be used for producing colorful medicinal products like paper electrodes, paper- groundedmicro-fluidic chips, biosensors and natural test paper.

Corrugated packaging accoutrements

  • These accoutrements are essential for the transportation of food, life products, drugs, and medical outfit.
    also, as numerous places have still not opened up for retail, it has accelerated the growth of online shopping. Thereby, adding the demand for corrugated packaging accoutrements .

Food packaging products

  1. As the restaurants too are facing the consequences of the lockdown, the food delivery mode is greatly working for them.
  2. thus, packaging products like paper boxes, straws, paper bags, etc have come new growth areas for the pulp and paper assiduity.

Where does the Pulp & Paper Industry need our backing?

Manufacturing paper involves the operation of new or recycled pulp including chemicals similar as humus, CaCO3, talc and/ or TiO2 to bring the white colour in the paper.
And, to manufacture a paper with different parcels, it requires chemicals similar as bounce, latex, colours, aluminium sulphateetc. And, these processes of manufacturing, colouring and decolouring bear a huge quantum of water. As a result, there’s a huge generation of wastewater.
The recycling of this wastewater involves anaerobic treatment where there are two major units- aeration receptacle and sedimentation receptacle to remove patches and reclaim the waste.
The composition of this wastewater depends on the product process and raw accoutrements used.
farther, the emigrations released while treating the wastewater are veritably dangerous.
This issue can be resolved by using largely advanced technologies which have the capability to control these emigrations, thereby, reflecting the minimal impact on the terrain.

How can Netsol Water help?

Being a business enterprise ourselves in the field of wastewater treatment, we understand the difficulties being faced by the pulp & paper assiduity in getting back to starting its operations. thus, we’re introducing our veritably effective and accessible- Plug & Play Recycling Model, which we’ve come up with after thorough evaluation and exploration. We are India’s largest Sewage Treatment Plant Manufacturer for Paper Industry.
The model is designed in such a way that it’ll help in reducing the imbalance in cost and profit situations caused due to the COVID- 19, while at the same time addressing the need for treating wastewater optimally.

The highlights of our Plug & Play Sewage Treatment Plant are
  1. Ready to use outfit
  2. No original CAPEX needed
  3. Quick Rallying
  4. Pay per use model
  5. Reimbursement options on Zero Liquid Discharge
  6. Flexible renting results along with short- term rental options

This Plug & Play STP model has been initiated by us to give a strong foundation for the Pulp & Paper Industry to insure they achieve their sustainability morals. We also deal in Commercial RO Plant, ETP plant and one of the largest sewage treatment plant manufacturers

July 11, 2022

I get asked now and also what the stylish books are for learning further about wastewater treatment. There are numerous, numerous excellent specialized references available but then I want to punctuate just those that I find myself coming back to most frequently. My work brings me into both artificial and external shops so numerous of the books you find then will be particularly helpful for those of you who also work in an artificial wastewater treatment terrain.

These have a best coverage over sewage treatment plant manufacturing as well as designing.
In the meantime I encourage you to add this lately published book to your specialized library. I suppose you’ll find yourself constantly using this excellent text as your preferred wastewater reference for a long time to come!!

For Wastewater Treatment

Henze, Mogens, Mark C.M. Loosdrecht, George A. Ekama, and Damir Brdjanovic. Biological Wastewater Treatment: Principles, Modelling and Design. London: IWA Publishing, 2008.

A superb textbook that I reference often. This is an advanced text so you won’t find it to be the easiest to read. But the effort you put into working your way through this book will be rewarding, adding to your knowledge and insight of wastewater treatment.

Berne, F. and J. Cordonnier. Industrial Water Treatment: Refining, Petrochemicals and Gas Processing Techniques. Houston: Gulf Publishing Company, 1995.

Bratby, John. Coagulation and Flocculation in Water and Wastewater Treatment. 2nd ed. London, UK: IWA Publishing, 2006.

The following is a series of books from Michael H. Gerardi. I encourage you to get all of these. I refer to them over and over again. For the practicing operator you won’t find a better source of information you can use in your daily wastewater activities.

Gerardi, Michael H. Nitrification and Denitrification in the Activated Sludge Process. New York: John Wiley & Sons, 2002.

—. Settleability Problems and Loss of Solids in the Activated Sludge Process. Hoboken, NJ: John Wiley & Sons, 2002.

—. The Microbiology of Anaerobic Digesters. Hoboken, NJ: John Wiley & Sons, 2003.

—. Wastewater Bacteria. Hoboken, NJ: John Wiley & Sons, 2006.

—. Microscopic Examination of the Activated Sludge Process. Hoboken, NJ: John Wiley & Sons, 2008.

—. Troubleshooting the Sequencing Batch Reactor. Hoboken, NJ: John Wiley & Sons, 2010.

Grady, C. P. Leslie Jr., Glen T. Daigger, and Henry C. Lim. Biological Wastewater Treatment. 2nd ed. New York: Marcel Dekker, Inc. 1999.

IWA Task Group. Respirometry in Control of the Activated Sludge Process: Benchmarking Control Strategies. Scientific and Technical Report No. 11. London, UK: IWA Publishing, 2002.

—. Activated Sludge Separation Problems: Theory, Control Measures, Practical Experience. Scientific and Technical Report No. 16. London, UK: IWA Publishing, 2008.

Jenkins, David, Michael G. Richard, and Glen T. Daigger. Manual on the Causes and Control of Activated Sludge Bulking, Foaming, and Other Solids Separation Problems. 3rd ed. Boca Raton: CRC Press, 2004.

Kim, Yong H. Coagulants and Flocculants. Littleton, CO: Tall Oaks Publishing, 1995.

Lee, C. C. and Shun Dar Lin. Handbook of Environmental Engineering Calculations. New York: McGraw-Hill, 2000.

Metcalf & Eddy. Wastewater Engineering: Treatment and Reuse. 4th ed. Boston: McGraw-Hill, 2003.

Nalco Company. The Nalco Water Handbook. 3rd ed. New York: McGraw-Hill, 2009.

This is a great, very-easy-to-read, reference book that covers so many different water and wastewater treatment topics. A book I include whenever I’m doing research

Sanin, F. Dilek, William W. Clarkson, and P. Aarne Vesilind. Sludge Engineering: The Treatment and Disposal of Wastewater Sludges. Lancaster, Pennsylvania: 2011.

Spellman, Frank R. and Joanne E. Drinan. Wastewater Stabilization Ponds. Boca Raton, FL: CRC Press, 2014.

Turovskiy, Izrail S. and P. K. Mathai. Wastewater Sludge Processing. Hoboken, New Jersey: John Wiley & Sons, Inc., 2006.

United States Environmental Protection Agency. Design Manual for Municipal Wastewater Stabilization Ponds. 1983.

Young, James C. and Robert M. Cowan. Respirometry for Environmental Science and Engineering. Springdale, AR: SJ Enterprises, 2004

IWA Publishing – Biological Wastewater Treatment Series – Six Book Collection

Andreoli, Cleverson Vitorio and Carlos Augusto de Lemos Chernicharo. Sludge Treatment and Disposal. Volume 6. London: IWA Publishing, 2007.

de Lemos Chernicharo, Carlos Augusto. Anaerobic Reactors. Volume 4. London: IWA Publishing, 2007.

von Sperling, Marcos. Wastewater Characteristics, Treatment and Disposal. Volume 1. London: IWA Publishing, 2007.

—. Basic Principles of Wastewater Treatment. Volume 2. London: IWA Publishing, 2007.

—. Waste Stabilisation Ponds. Volume 3. London: IWA Publishing, 2007.

—. Activated Sludge and Aerobic Biofilm Reactors. Volume 5. London: IWA Publishing, 2007.

The books listed above from IWA Publishing are free to download as PDF files below. This is very generous on the part of IWA to make these excellent references available to everyone at no charge. I actually bought all of these textbooks before they became freely available. Now I keep a copy of these on my computer. You should do the same.

September 6, 2021

Who is the largest manufacturer of Sewage Treatment Plants and Effluent Treatment Plants in India?

Netsol Water is the leading wastewater treatment plant manufacturer in India. We take immense pleasure in designing and manufacturing machines to save the Earth and its resources, especially water. We continuously strive for making our Environment eco-friendly.

Our vision is to provide sustainable and affordable management solutions to cope up with the challenges of increasing urbanization, industrialization, and population growth. Our products manufactured have a high quality, and we work to provide eco-conscious solutions that are reliable, cost-effective, and durable.

Why choose us?

  • We give essential importance to the quality and have an eye to eye detail to check the quality is not compromised. ‘Quality is the core competency of our business.
  • We help in providing proactive ideas and solutions.
  • We believe in water recycling and conservation.
  • We provide world-class services after the sale.

In this article, we try to make you aware of how sewage and effluent treatment plants work and how we provide better economic solutions so that nothing is compromised in quality.

What are Sewage treatment plants?

Sewage treatment plants are used to purify the wastewater received from industries, households, and commercial sources. It removes the impurities by removing toxic substances present that may cause damage to our environment.

Netsol offers compact sewage treatment plants using polypropylene tanks with a guarantee of 20 years, no smell, simple, scalable, and reliable. Some of the key features of the product are as follows:

  • No operator is required.Sewage Treatment Plant Manufacturer - 9650608473
  • Completes all the compliance requirements.
  • Treated water can be reused for horticulture.
  • No sand and charcoal filters are necessary.
  • Energy Efficient up to 75% saving.
  • Underground installation possible.z

What are Effluent treatment plants?

Effluent treatment plants are used to treat the effluent arriving from various sources like industries and factories. The wastewater released from them contains hazardous and toxic substances which may prove to be harmful to our environment.

Netsol offers compact Effluent treatment plants ranging from small, medium, and large scale i.e. from 5KLD to 500 MLD.

Some of the key applications of the product are here as follows:

Netsol Water incorporates the latest technology that conforms to the predefined industrial standards and quality. Therefore you don’t have to worry about the quality and services. We are one of the most cost-effective companies in manufacturing sewage treatment plants and effluent treatment plants.

Contact us to discuss your requirements. We can be reached at 9650608473 and 9650795306, or feel free to leave your query at enquiry@netsolwater.com.


April 14, 2021

The relationship between TDS (total dissolved solids) and conductivity depends on the water chemistry. For example, 1,000 mg/L of NaCl will give a different conductivity than 1,000 mg/L of MgSO4. The very rough rule of thumb is TDS, mg/L × 1.6 = Conductivity (µS/cm). The factor of 1.6 used in the equation has a typical range of 1.4 to 1.8, though wider variations are certainly possible.

When possible, the best correlation is developed from the analysis of specific water or waste stream for both TDS and conductivity from which a specific correlation factor is produced. Then, if the water chemistry remains fairly constant, conductivity can serve as a good indication of TDS. If the water chemistry changes significantly, the rule of thumb will not work.

Netsol Water Solutions is the largest and India’s leading Sewage Treatment Plant Manufacturer, Effluent treatment plant manufacturer, commercial ro plant, and industrial ro plant manufacturer having its own manufacturing unit in Greater Noida, Delhi, India.

For any kind of Query or Requirement of Water and wastewater treatment products, call us at +91-9650608473 or you can email us enquiry@netsolwater.com.

We are Indias Largest and a leading trusted brand for STP Plant, ETP Plants, and RO Plants.

April 8, 2021

The National Association of Clean Water Agencies (NACWA) supports the interests of wastewater treatment plants and agencies across the country. And it is regulated under the Clean Water Act, is responsible for making sure that your water is clean and safe to drink.

We all contribute to the nutrient problem when the organic material we eat is digested then discharged, in the form of wastewater, back into our surface waters. But in the majority of watersheds impaired by nutrient pollution, including India, the Gulf of Mexico, the Great Lakes Basin, and the Chesapeake Bay, the dominant source of nutrient impairment is agricultural runoff.

The major players covered in the agricultural wastewater treatment report are AECOM, Akzo Nobel N.V., Albemarle Corporation, Aquatech International LLC, BASF SE, Black & Veatch Holding Company, Evoqua Water Technologies LLC, Atkins, DuPont, IDE Technologies, Lindsay Corporation, Louis Berger, Organo Corporation, OriginClear, Suez and Veolia Water among other domestic and global players.

Agricultural Wastewater Treatment Plants Market Scope and Market Size

The agricultural wastewater treatment market is segmented on the basis of technology, pollutant source, and application. The growth among segments helps you analyze niche pockets of growth and strategies to approach the market and determine your core application areas and the difference in your target markets.

  • On the basis of technology, the agricultural wastewater treatment market is segmented into physical solutions, chemical solutions, and biological solutions. The chemical solutions segment is expected to dominate the agricultural wastewater treatment market, as the chemicals are largely used for the treatment of pesticides and other harmful chemicals, prior to the release of water in the river and other water resources.
  • Based on pollutant sources, the agricultural wastewater treatment market is segmented into point source and non-point source.
  • The agricultural wastewater treatment market is also segmented on the basis of application. The application segment is segmented into farmland runoff, farm wastewater, and others.

This Bolg is reported and crafted by @Monisa Roy (Sales and Marketing Professional) on LinkedIn.

We are India’s Largest manufacturer of Wastewater Treatment Plants. We are the leading Sewage treatment plant manufacturer, Effluent Treatment Plant Manufacturer, Commercial RO Plant Manufacturer, Industrial RO Plant Manufacturer and also dealt top rated Water ATM.

March 18, 2021

TSS stands for Total Suspended Solids. TSS is that suspended particles (Dry-weight) in water that is not dissolved, can be trapped by a filter by using a filtration system in a sample of water. It is also a major water quality parameter used to access the specimen by any type of water or waterbody, for example, ocean water or wastewater after the treatment in the wastewater treatment plant.

Total Dissolved solid acquired through separate analysis to determine water quality. In previous, TSS is also known as a non-Filterable residue (NFR), changed due to a nonproper understanding of other scientific disciplines.

How Does TSS Affect the Water Quality?

When you are talking about water quality, due to the high level of total suspended solids the temperature of the water is dramatically increased and the total dissolved oxygen level decreases. This all happens just because the suspended particles absorb extra heat from solar radiation than the normal water molecules do.

How TSS Is Measure in water or wastewater treatment

The most accurate and common method of measuring the TSS is by weight. A water sample is filtered, dried, and weighed. This method is most accurate in all other techniques of measuring Total Suspended Solids. Sometimes it is also difficult and takes more time for perfect results.

What is the Total Suspended Solids calculation Formula (mg/L)?

TSS in water or wastewater treatment plant calculated in milligram per litter as per the following given equation:

(Dry weight of residue and filter – the dry weight of filter alone, in grams) / ml of samples * 10,00,000

How to lower your Total suspended solids in Wastewater Treatment?

The most important measure in the Wastewater treatment plant is TSS. Total suspended solids level must have adhered to state environmental regulation. Because high TSS levels can harm wildlife and dangerous to human health. Your wastewater treatment equipment also can be damaged by elevated TSS.  By following some of the given effective ways to keep your TSS under Control.

  • Focuses on removing first TSS from wastewater
  • Used a properly sized EQ Tank (Equalizer Tank). This will help to maintain the flow and loading rate.
  • Control over the pH of the wastewater. It is the basic and most important to manage the pH Level. To know more read: What is ph in wastewater?
  • Use modern stainless steel or plastic make plate pack DAF.
  • Use of the regenerative air dissolution turbine pump uses minimal electricity to dissolve air into water. This may lead to producing 20-30 micron air bubbles.
  • Use high rated modern DAF which cleans by you to avoid facing clogging, solids separation problems, higher TSS, and high chemical feed rate.
  • Use performance-tested liquid chemistry which allows for full automation to lower the cost, and eliminates the wetting issue.
  • Locate properly chemical injection points and always test them.

By reading the above point you are able to know that how to control TSS, which is a crucial part of your wastewater treatment plant.

If you are looking for the best quality Sewage Treatment Plant in India (Any part of the Country), Kindly make us a call at +91-9650608473 or write your requirement on enquiry@netsolwater.com

Netsol Water is a top-rated sewage treatment plant manufacturer, effluent treatment plant manufacturer, Commercial RO Plant manufacturer in Delhi | Noida | Ghaziabad | Faridabad | Greater Noida | Mumbai | Chennai | Goa | Lucknow | Bihar | Patna | Uttrakhand | Himachal Pradesh.

March 9, 2021

The treating process of wastewater or sewage takes into a place known as WWTP, which is stands for Waste Water Treatment Plant. It is also referred to as Water Resource Recovery Facility(WRRF) but if you are talking in terms of domestic wastewater it is known as Sewage Treatment Plant(STP).

Wastewater Treatment is a process of use for removing the contaminants from wastewater or sewage water and automatically works using a different process to convert it wastewater into an effluent which is acceptable for the water cycle.

Steps involved in wastewater treatment plant
Steps involved in the wastewater treatment plant

Wastewater treatment plant process

Any WWTP follows 8 major steps during the wastewater treatment process. WWTP major process is as follows-

  1. Screening and Pumpinghttp://www.sewagetreatmentplants.in/what-is-the-full-form-of-wwtp-s
  2. Grit Removal
  3. Primary Settling
  4. Aeration / Activated Sludge
  5. Secondary Settling
  6. Filtration
  7. Disinfection
  8. Oxygen Uptake
  9. Sludge Treatment

WWTP steps in Detail-

Now when you aware of the steps used in treating wastewater via STP or WRRF system. We discuss each step in detail-

1- Screening and Pumping –

Wastewater first comes through screening equipment where the material like – woods piece, plastic, rags, and other non-fluid objects are removed from it. After removing Greece and other objects wastewater is pumped to the Next Step: Grit Removal

2- Grit Removal –

In Second Step, the heavy and fine material eg- sand and gravel is removed from the wastewater.

3- Primary Settling –

During this step of treatment, a large circular tank knows as clarifiers used to do some work like step 2 but in a slow process. All the material is settled in the bottom of the tank and called primary sludge. This step also includes phosphorus removal by adding chemicals into it.

4- Aeration / Activated Sludge –

This water treatment includes most of the treatment. The biological Degradation process indulges to consume pollutants by microorganisms and transformed into nitrogen, water, and cell tissue. This biological activity is happening the same as the bottom of rivers and lakes, but this process is fast than the natural way which takes years to accomplish.

5- Secondary Settling –

Secondary clarifiers allowed treated wastewater to separate from biological from aeration tank, yielding effluent is now 90% treated. The activated sludge is pumped from the bottom of clarifiers continuously and send it again to step 4.

6- Filtration –

By using micron polyester media effluent is polished. Disc Filtered material from the surface is periodically back-washed and returned to the head of the plant for treatment.

7- Disinfection –

This step assure that there is no harmful bacteria or viruses are present in treated water. Ultra disinfection is used to kills remaining bacteria to level at the discharge permit.

8- Oxygen Uptake –

In this step of WWTP, Now high quality and stabilized water are available in this process. if it is necessary to aerate to dissolved oxygen to the permitted level. The water before discharge to the river must meet the requirement set by DNR, pollutant removal is maintained at or greater than 98%.

9- Sludge Treatment –

The primary sludge is which is pumped to step three of clarifiers from the bottom of the tank. The treatment of the sludge process involves different steps. And produce minimum and organic waste.

Top and Leading Wastewater Treatment Plant Manufacturer in india
Top and Leading Wastewater Treatment Plant Manufacturer in India

This Blog is written and developed by Netsol Water Solutions, a leading company of wastewater treatment equipment. A top and leading Sewage Treatment Plant Manufacturer, Effluent Treatment Plant Manufacturer, Commercial RO Plant, Industrial RO Plant, and Water Filtration Plant.

Greater Noida


We are the leading Sewage Treatment Plant (STP) Manufacturer & Supplier, in the Delhi-Noida, India.
+ 91-9650608473




We Are Everywhere in India & Overseas.


Follow Our Activity

TO get an update about our daily activity just follow us and Join the Hands to Save Mother-Earth