Sewage is water that is discharged after residences, institutions, hospitals, industrial and commercial use. Sewage treatment refers to the process of removing contaminants, micro -organisms and other types of pollutants from wastewater influent. The main objective of sewage treatment is to produce an effluent (treated waste water) and a solid waste/ sludge suitable for discharge into the natural environment.
Sewage Treatment plants are designed on diffused aeration technology by using membranes of global standards. These systems are in compost space saving, less noise level and user friendly systems. We offer various capacities of sewage treatment plants ranging from 10 KLD to 1000 KLD and customized systems for colonies, industries.
Extended Aeration is a type of sludge activated process with primary settling. It is most commonly used treatment system in small developments and resorts. In an Extended Aeration System (EAS) sewage is brought into a biological basin where it is degraded by naturally occurring bacteria. After an “Extended” period of time, typically 24 hours of detention time, the mixed liquor (ML) is sent to a clarifier where it is allowed to settle. The retention time will be very long in order to generate less sludge. Secondary effluent (SE) is drawn off the clarifier and the settled biomass is returned to the head of the plant.
To maintain a constant mixed liquor concentration, a certain amount of the settled biomass is wasted (WAS) out of the plant, typically to an aerated sludge holding tank or digester.
To improve the efficiency of treatment, an anoxic zone, or un-aerated zone, is often placed at the head of the biological basin this zone allows for de-nitrification, which helps to moderate the pH, as well as provides a better settling biomass. The whole process is aerobic and the BOD removal efficiency is higher than activated sludge process which makes it desirable to use where it is to be followed by tertiary treatment for reuse. A flow diagram of this treatment technique is shown below.
The Sequential Batch Reactor (SBR) process is a sequential suspended growth (activated sludge) process in which all major steps occur in the same tank in sequential order. The complete five stages are take place in a single reactor thus reduce the foot print. SBRs can be designed and operated to enhance removal of nitrogen, phosphorus and ammonia in addition to removing TSS and BOD
1.FILL : Wastewater fills the tank, mixing with Biomass that settles during the previous cycle.
2.REACT: Air is added to the tank to aid biological growth and facilitate waste reduction.
3.SETTLE: Mixing and Aeration stop during this stage to allow solid to settle.
4.DRAW: Clarified effluent is discharged.
5.IDLE: Sludge can be removed during this stage.
LOWER INSTALLED COST THAN “CONVENTIONAL” METHODS.
LESS LAND SPACE REQUIRED FOR SBR TREATMENT PLANTS.
CONSISTENT HIGH-QUALITY, LOW NUTRIENT LEVEL EFFLUENT.
TOLERATE WIDE SWINGS IN FLOW AND ORGANIC LOADING.
NO CLARIFIER REQUIRED.
BETTER CONTROL OVER FILAMENTOUS GROWTH AND SETTLING PROBLEMS.
NUTRIENT REMOVAL WITHOUT CHEMICALS – NITRIFICATION AND DE-NITRIFICATION, PHOSPHATE REMOVAL.
SIMPLE SLUDGE PROCESS MANAGEMENT.
LESS EQUIPMENT TO SERVE AND MAINTAIN.
EXISTING PLANTS CAN OFTEN BE CONVERTED TO SBR PROCESS.
LESS OPERATOR ATTENTION THAN “CONVENTIONAL” PROCESS.
Moving Bed Bio-Film Reactor (MBBR) technology is based on the bio-film principal with an active bio-film growing on small specially designed plastic carries that are kept suspended in the reactor. It is one of the advanced biological treatment process which have a great potential for the simultaneous and efficient removal of nutrients along with organic matter. It is a process coupling suspended activated sludge and attached growth process in a single system. The technology utilizes the advantage of both activated sludge and other bio-film systems (e.g. Bio-filters, bio-rotors etc.) without being controlled by their disadvantages. The carries are designed in such a way that it provides a large protected surface area for the bio-film and optimal conditions for the bacteria culture while suspended in the water.
1. Clog free operation
2. High Bio surface area.
3. Make Bio system extremely compact.
4. No Sludge return system needed.
5. Effective under extremely high BOD loading.
6. Less sensitive to shock loading.
7. High Effluent quality.
8. Small footprint, simplicity of design installation & operation.
9. Design flexibility, easy affordable up-gradation.
10. No Backwash needed & low maintenance.
11. Easily retained media with long life.
Reverse osmosis occurs when the water is pushed through a semi permeable membraneusingexternal pressure. Thepressureforceswater moleculesthrough a membrane leaving the contamination.
Ultrafiltration(UF) isamembranefiltrationprocesssimilartoReverse Osmosis, usinghydrostaticpressuretoforcewaterthroughasemi -permeablemembrane. Ultra filtration is used for the separation of suspended solids, colloids, bacteria andvirus. Thistechniqueusesmembraneswithpore sizebetween1 -100nm.
Demineralization is theprocess of removingmineral salts from Water byusing the ion exchange process. Demineralization of water is achieved by passing waterthrough CationResin Columnandthenthough AnionResinColumn. When minerals, which are salts of acid and base, dissolve inwater, they get ionized in to CationsandAnions. Waterdemineralizationthusisprocessofremovingthese Cation andAnions.
Effluent Treatment Plant or ETP is one type of waste water treatment method which is particularly designed to purify industrial waste water for its reuse and its aim is to release safe water to environment from the harmful effect caused by the effluent. Industrial effluents contain various materials, depending on the industry. Some effluents contain oils and grease, and some contain toxic materials (e.g., cyanide). Effluents from food and beverage factories contain degradable organic pollutants. Since industrial waste water contains a diversity of impurities and therefore specific treatment technology called ETP is required. The ETP Plant works at various levels and involves various physical, chemical, biological and membrane processes to treat waste water from different industrial sectors like chemicals, drugs, pharmaceutical, refineries, dairy, ready mix plants & textile etc.
1. To clean industry effluent and recycle it for further use
2. To reduce the usage of fresh water in industries
3. To preserve natural environment against pollution
4. To meet the standards for emission of pollutants set by the Government & avoid heavy penalty
5. To reduce expenditure on water acquisition
Supplier and dealer for Domestic Water Purifiers RO System.