Municipal Wastewater Treatment
WSCO provides reliable and cost effective solutions for Domestic and Municipal wastewater. We provide turn-key solutions from designing of the plants, using the best technology, building and construction of the plant, and operation and maintenance. We have a product range of machinery and equipment that can fit all clients’ requirements, along with having the best quality in the market.
There are many kinds of sewage treatment plants which vary in the process by which they treat wastewater. We specialize in all sorts of wastewater treatment, and can design, build, and maintain a plant for you, customized to your requirements.
Some of the treatment plans we offer are the following:
Activated Sludge Plant (ASP)
Activated Sludge Plants are a common method of treating sewage water that use aeration, and organisms like certain bacteria and protozoa. It consists of 3 parts – an aeration tank, which serves as a bioreactor; a settling tank (final clarifier) to separate the solids from treated wastewater; and a return activated sludge equipment to transfer settled sludge from the clarifier to aeration tank. Activated Sludge Plants usually need to be serviced twice a year.
Rotating Disc System (RBC)
Rotating Disc Systems are also known as Rotating Biological Contactors (RBCs).They were introduced in the 1970s, and revolutionized the treatment of sewage water. RBCs are made up of 3 parts – the disc itself, the Primary Settlement Tank, and a bio-disc rotator. The effluents settle at the bottom of the tank, after which the rotating discs treat it before discharge into a stream, or other water body. This happens due to the growth of microorganisms on the disc that digest the unclean effluents. After this, there is an aeration process for dead bacteria and effluents to settle, and the cleaned effluent is discharged. RBCs require servicing either annually, bi-annually, or quarterly, depending on their use and making.
Membrane BioReactor (MBR)
A Membrane Bioreactor consists of a system containinga membrane, like microfiltration or ultrafiltration, being combined with a method involving biological processes to treat wastewater. These membranes are used to separate solid particles from the sewage or wastewater, so that organisms like bacteria can further treat the effluents an MBR is a version of the Activated Sludge Process, and recovers regular weekly maintenance. It requires servicing approximately once in six months.
Moving Bed BioFilm Reactor (MBBR)
MBBR uses the Activated Sludge Process, combined with biofilm media to effectively clean wastewater. MBBR systems can treat large amounts of wastewater thoroughly, while taking up little space. They use floating plastic carriers (media) within the aeration tank to increase the amount of microorganisms available to treat the wastewater.
Submerged Aerated Filter (SAF)
Submerged Aerated Filters are an ideal sludge dewatering mechanism to reduce organic matter from wastewater. The SAF process is based on individual cells arranged in a series through which the wastewater flows. Each cell contains a rigid block media on which biomass is formed, and a fine bubble diffuser system feeds oxygen from blowers in the control kiosk to promote its growth. Wastewater passes through the biomass which feeds on the Biological Oxygen Demand. After this, the clean effluent exits at the surface of the final cell. SAF systems require maintenance and service annually, six-monthly, or quarterly, depending on their usage.
Suspended Media Filters (SMF)
Suspended Media Filters use a filtration process, usually through a membrane, to remove suspended, insoluble impurities in water during pretreatment. Media Filters used in water & Wastewater treatment are either based on gravity or pressure, depending upon the flow of water. Water is pumped through a pressure filter, while it flows naturally due to gravity in a gravity filter.These filters employ granular media like sand, anthracite or activated carbon, either alone or in combination, as the filter media.
Sequencing Batch Reactor (SBR)
Sequencing Batch Reactors are industrial tanks used for wastewater treatment. They clean effluents from municipal and industrial machinery in batches.Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make itsuitable for discharge into sewers or for use on land. It consists of two tanks through which the wastewater flows. While one tank is in settle/decant mode, the other is aerating and filling.
Dissolved Air Flotation System (DAF)
Dissolved Air Flotation Systems (DAF) are an effective method of sludge treatment, and remove oil and grease from the wastewater to make it suitable for reuse. It is a clarification process that uses micro bubbles to attach and float flocculated particles and suspended solids to the water surface for removal. These floated sludge particles are then removed periodically in a desludging trough, and the clarified water flows to the bottom of the clarifying chamber, after which it is collected and released.
A Trickling Filter is a wastewater treatment system that uses the method of filtration to remove impurities. It is a fixed-bed system that uses aerobic processes, and the settled water is continuously trickled over the filter, causing a layer of biofilm to form. Aerobic conditions are maintained.
Industrial Wastewater Treatment
Industrial wastewater is that which is generated as a by-product from process unit operations. It consists of hazardous substances that can often have harmful effects on human, animal, plant, aquatic, and microbial life.
WSCO helps industries to meet the standard for emission or discharge of environmental pollutants, avoid hefty penalties, and cut expenditure by reducing the cost of usage of fresh/potable water. Moreover, it makes the wastewater fit to reuse, hence reducing the burden on our limited freshwater resources.
Many industries release toxic wastewater that needs to be treated. We can customize our water treatment plan for different industries and water toxicity levels, some of which are explained below:
Agricultural wastewater mainly comes from excess water that flows down furrows where crops are planted.
This is necessary for irrigation, and is usually called irrigation tailwater. This wastewater usually contains the fertilizers and pesticides used during harvesting, and can be reused with or without treatment on the farms itself.
Food & Beverage Industry
In the Food & Beverage industry, water is used extensively to clean, and process materials.
In the Food &Beverage industry, water is used extensively to clean, and process materials. Depending on the kind of food being prepared, the amount of toxic water varies in its concentration, and hence, its treatment.
It is necessary to use the best and most cost-effective method of wastewater treatment, depending on your food processing plant. The wastewater from this industry is usually treated by Activated Sludge Drying processes, but it cannot always take the intensity of waste produced. Hence, we recommend DissolvedAir Flotation (DAF) customized for your industry.
Chemical industries usually release effluents with a high amount of organic compound waste.
Chemical industries usually release effluents with a high amount of organic compound waste, which when released unrated into water bodies, can cause massive disturbance in their natural balance. Pharmaceutical industries, especially, have chemicals that can be detrimental if entered into the water cycle.
Depending on your industry and the kind of chemicals it releases in terms of their intensity, toxicity, and composition, we can customize water treatment solutions for you.
The Textile industry uses water mainly in its coloring and finishing processes.
The Textile industry uses water mainly in its coloring and finishing processes. These effluents can be highly toxic, and contain both biodegradable and nonbiodegradable substances that can modify the chemical composition in the water bodies it’s released into.
There are multiple physico-chemical processes that can be used to treat the effluents that come from textile industries, customized to your requirements.
The dairy industry processes milk to make its products, like buttermilk, cheese, etc.
The dairy industry processes milk to make its products, like buttermilk, cheese, etc. For this, there is use of water, and consequently, effluents containing residue of the same. This usually contains high BOD and COD levels, which need to be reduced before being discharged into a water body for reuse. The most preferred treatment method for dairy wastewater is a biological method including processes such as activated sludge, trickling filters, aerated lagoons, sequential batch reactor (SBR), anaerobic filters, and so on.
Slaughterhouses & Meat Process
Slaughterhouses and meat processing industries discharge effluents heavy with toxic waste.
Slaughterhouses and meat processing industries discharge effluents heavy with toxic waste that cannot be reused without intense treatment. There are multiple methods used to treat wastewater from slaughterhouses, and is usually done in 3 stages – primary, secondary, and tertiary. This includes preliminary treatment, physicochemical treatment, biological treatment, advanced oxidation process, and combined processes.
Wastewater from the medical industry, like hospitals and clinics, can vary in levels of toxicity.
Wastewater from the medical industry, like hospitals and clinics, can vary in levels of toxicity, depending on visitors, laundry, and medical waste that might include biological waste.
Depending on the source of waste and its components, we can design wastewater treatment plants tomake it treatable according to the legal and environmental standards required.
Whether the pollutants in wastewater are Suspended Solids, Colloidal Solids, Organic and Inorganic Salts, Organic Compounds,Oil and grease, heavy metal, or there is an issue with colour or pH, WSCO can help the you identify the best Industrial Waste water treatment process to be implemented. This can depend on various factors, and we are her to customize solutions for you, no matter your needs.
Grey Water Management Systems
Grey water is wastewater released from domestic buildings that does not include sewage and fecal substances. It comes from washing clothes, dishes, and bath water. Grey water reuse and recycling has now become popular, because of environmental awareness and the ease by with which it can be reused. Grey water can be reused for non-potable purposes like irrigation, toilet flushing, etc.
Grey water reuse and recycling reduces the burden on freshwater resources and can act as a water source in arid areas, for non-potable functions. Along with this, it also reduces environmental impact from septic tanks, while replenishing groundwater and its nutrients.
Our engineers can design and create a number of greywater treatment systems customized according to your needs.
Package/Mobile Wastewater Systems
A package wastewater treatment plant, also known as a mobile or containerised plant, is a self-contained treatment system for sewage and wastewater.These containerized plants do not require extra tanks for sludge storage, extra settlement, etc. Packaged wastewater plants are usually used in rural areas, trailer parks, and highway rest stops – basically, places that don’t have to cater to a large population.
Packaged wastewater treatment can also be done through other technologies, like MBBR, SBR, and MBR. This reduces the carbon footprint, and the treated wastewater is disinfected with chlorine. There is a dechlorination unit that then removes the chlorine. Chlorination and dechlorination units can beultraviolet forms of disinfection. Eventually, this water is diluted sufficiently, and then discharged into a stream to safely assimilate the remaining pollutants without much harm to the environment.
Mobile wastewater treatment plants have benefits not only in terms of building, but also maintenance. They are portable even after being assembled, so you can move them around to different locations. Along with this, they can be placed either above, or partially below the ground without a concrete surround, and require close to maintenance and spare parts, making them convenient to use long-term, as well.
Our expert engineers can design package wastewater treatment systems for you, customized to your requirements. This can be done for all locations, types of wastewater, and different technologies.
Sludge Dewatering and Management System
Sludge is the residual matter that accumulates in sewage treatment plants. This can be solid or semi-solid and is a by-product of sewage treatment.
Sludge can be both primary and secondary. Primary sludge is usually residue from sedimentation, and chemical processes like precipitation, while secondary sludge comes from biological processes and treatments, and hence contain biomass.
It is essential in any wastewater treatment process to reduce the volume of sludge produced. This ensures the production of stabilized sludge. Stabilized sludge does not have odour and can be handled without any harmful effects, hence reducing the cost of pumping and storage.
Our engineers can design and build sludge treatment systems through the spectrum:
Aerobic & Anaerobic Sludge Digestion
Sludge Drying Process & Biowaste Digestion