Reverse Osmosis is a process in which water is forced by pressure (min.100 psi) through a semi Permeable membrane. The good water passes through the membrane while the dissolved and particulate material is sent down the drain. As you become more aware of the benefits of pure water, the demand for equipment, capable of treating your water supply grows. Simultaneously, acceptance of reverse osmosis is increasing, for whole household commercial application. With the whole reverse osmosis water system, users obtaining water from a low quality well can enjoy water with lower total dissolved solids, not just lower hardness.
The reverse osmosis process uses membranes to remove dissolved solids, organics, pyrogen and bacteria from water. Reverse osmosis also removes Sodium Chloride, hardness fertilizers, insecticides, arsenic, heavy metals and many other contaminants. Most importantly, reverse osmosis reduces total dissolved solid content of the water
Reverse Osmosis include a high-pressure pump, the membrane and pressure vessel, and the concentrate adjustment valve. The membrane consists of tiny holes as small as 0.0006 microns. To give you some perspective, the smallest known bacteria are 0.02 microns. As the water is pushed through these small holes, pollutants in the water stay behind and are washed away by water escaping the pressure vessel. Over 200 million Indians need to restrict their intake of salt because of high blood pressure, yet almost every supply has sodium chloride in it. Nitrates and phosphates from fertilizers enter our water supplies as run-off during rainstorms and irrigation. Nitrates over 10 parts per million may cause intestinal and stomach cancer Reverse Osmosis removes most of the dissolved mineral salts, almost all of the particulate matter, and most of the dissolved organic compounds. Water pressure must be maintained at around 100 pounds per square inch to keep a driving force across the membrane to produce a high clarity, low mineral content water. Most Reverse Osmosis systems operate in the 25-50% conversion range. This means that at 50% conversion, 100 lit. of pure water and 50 lit of concentrate. The central part of the Reverse Osmosis system is the module, which is, pressurized container housing the semi-permeable membrane. Cellulose Triacetate (CTA) membr anes are used for chlorinated supplies. Thin film composite long life membranes are used for non-chlorinated watersupplies. Here the feed water will be separated into usable product called permeate and waste product called concentrate.
The main function of E.T.P. is to treat the industrial effluent and make it usable for irrigation and other industrial use. The main components of E.T.P. are given below.
Bar Screens: Metal mesh is use to remove large size suspended materials from the effluent, it helps to avoid clogging of the pipes.
Oil & grease removal: It is necessary to remove oil and grease from the effluent which affects the downstream process.
Equalization Tank: In which we can store effluent prior to treatment. Proper mixing of effluent can be done by using jet mixer or agitators. it helps to maintain the uniform flow and characteristics of the effluent for the downstream processes. neutralization of the effluent also done in equalization Tank.
Dosing Tank: In dosing tanks flocculating and coagulating chemicals are prepared with provision of uniform mixing.
Flash Mixer: Effluent mixed with the chemicals and forms flocks. Uniform mixing is provided to avoid the settling of the flocks.
Primary Clarifier: Overflow from the flash mixer is collected in primary clarifier where flocks settles down (primary slurry) and clear water over flown to secondary treatments.
Aeration Tank: also known as bioreactor where biomass acts on organic matter present in the effluent in presence of oxygen and reduces the C.O.D. and B.O.D. value.
Secondary Clarifier: MLSS gets separated in secondary clarifier and excess secondary sludge recycle back to the aeration tank to maintain the S.V.I. value.
CCT Tank: In this tank chlorine dosing can be done to disinfect the water.
P.S.F. & A.C.F.: sand and carbon media filled filters are used to remove the suspended solids from the effluent to fulfill the requirement as per the MPCB norms.
Bar Screen and Fine Screen Chamber: It is device with openings, generally of uniform size, that is used to retain solids found in the influent wastewater to treatment plant. The principle role of screening is to remove coarse materials from the flow stream
Collection Tank: Influent is collected for flow equalization to overcome the operational problems caused by flow rate variations, to improve the performance of the downstream processes and to reduce the size and cost of downstream treatment facilities.
Aeration Tank: In the aeration tank, contact time is provided for mixing and aerating influent wastewater with the microbial suspension, mechanical equipment is used to provide the mixing and transfer of oxygen into the process.
Clarifier: The mixed liquor from aeration tank then flows to a clarifier where the microbial suspension is settled and thickened. the settled biomass, described as activated sludge because of presence of the microbes is returned to continue biodegradation of of the influent organic material.
CCT Tank: The clear overflow of the clarifier collected in CCT tank where sodium hypochlorite or calcium hypochlorite is used to disinfect the water..
P.S.F. & A.C.F.:.: it removes suspended solids, & color from the effluent.
Advanced Technology we provide:
M.B.R.: Membrane biological reactors, consisting of a biological reactor with suspended biomass and solids separation by microfiltration membranes with nominal pore sizes ranging from 0.1 to 0.4µm.
M.B.B.R.: Moving Bed Biofilm Reactor technology employs thousands of polyethylene biofilm carriers operating in mixed motion within an aerated wastewater treatment basin. Each individual biocarrier increases productivity through providing protected surface area to support the growth of heterotrophic and autotrophic bacteria within its cells. It is this high-density population of bacteria that achieves high-rate biodegradation within the system, while also offering process reliability and ease of operation.
DM Plant removes mineal salt by an ion-exchange process from the raw water. After demineralization water passes through the fine filtration and UV sterilizer so that the water meet all the specification of pharmaceutical for purified water DM Plant consists of water feed pumps (one working one stand by) with motor, activated carbon filter, strong acidic Cation unit, strong alkaline anion unit, Mixed bed unit, 5 micron filter, UV sterilizer, inter connected pipe work with valves & ejectors, pressure gauges, flow meter, conductivity meter etc
Evaporation is being considered as an alternative process in an increasing number of wastewater treatment applications. It can be effective for concentrating or removing salts, heavy metals and a variety of hazardous materials from solution. Also, it may be used to recover useful by-products from a solution, or to concentrate liquid wastes prior to additional treatment and final disposal. Most applications of the technology also produce a high quality, reusable distillate-a very important feature where water conservation is a priority.
Air scrubbers are commonly used in process-air applications to eliminate potentially harmful dust and pollutants. A liquid, in general water added with active chemicals adapted to the process, is sprayed in to the air flow. Aerosol and gaseous pollutants in the air stream are removed by either absorption or chemical reactions with the water solution.
Ait is an engineered process using controlled flame combustion to thermally degrade waste materials.
Why incinerator is preferred:
• •It reduces the volume of waste up to 5%.
• • At sufficiently high temperature and residence time, any hydrocarbon vapor can be oxidized to CO2 & water.
• • Heat can be recovered.
• • Easy to maintain.
• • Only solution for certain waste types.