Bt Water Treatment

Savli, Vadodara, Gujarat

Electrolytic West Water Technology is an evolving and emerging field in the treatment of waste water. It is unconventional non biological & chemical free technology. It has the potential to treat effectively the waste water compared to conventional treatment. It has potential to remove even non biological & toxics companiment from the waste streams. The system are compact modular in construction, packaged & noiseless on operation.

Electrolysis is a technique involving the passage of electricity through the effluent. The electrical current destabilizes dissolved colloidal particles and alters the charge on suspended particles permitting purification of water.

Water is one of the most important components used in all type of industry. Waste Water Treatmentt is used in many processes of Industry. It may be used for washing, cooling, Heat Exchanging, condensing the steam etc But Water used in industry is not totally consumed.

Almost all industries generate waste water from industries that needs serious action So, improper discharge of waste water can pollute local Environment. In many manufacturing Industries, by-product can be treated as waste water called Effluent should be treated before it release into the environment.

Effluent is an outflow of water or gas from a natural body of water, or from a human made structure. Effluent, in engineering, is the stream exiting a chemical reactor.

Effluent is defined as Treated or Untreated Waste water that flows out of a treatment plant, sewage, or industrial outlet. So this treatment of waste water i.e. untreated effluent is turned into Treated Effluent with the help of Effluent Treatment Plant (ETP) sometimes it is also called as Sewage treatment Plant (STP). Clean water then is safely discharge into Environment.

Ceramic membrane based filtration system (CMS) is the latest technology in the effluent & waste water treatment. CMS operates various filtration ranges includes Micro filtration, Ultra filtration, Fine Ultra filtration & Nano filtration. It offers diverse key benefits in the waste water treatment which include process stability, high quality, low pre- treatment requirement and minimal maintenance. In contrast to polymer membranes, ceramic membranes offer numerous advantages including intense high chemical and physical stability, outstanding separation characteristics and long working life

Ceramic membrane is a porous fine ceramic filter which is sintered from Alumina, Titania or Zirconia under ultra high temperature. Ceramic membrane normally has an asymmetrical structure with porous support active membrane layer. The macro porous support ensures the mechanical resistance while the active layer functions separation ranging from Micro filtration, Ultra filtration and even Nano filtration (from 10nm down to 1KD). Ceramic Membrane always runs at a Cross Flow Filtration mode. The turbid fluid goes through membrane layer inside the single channel or a multi channel at a high velocity. Driven by Trans Membrane Pressure (TMP), the clean liquid with micro-molecule pass through the membrane layer vertically to permeation, the solid and big molecule is rejected in retenate. The feed fluid is thus clarified, concentrated and purified.

Our Ceramic membrane filtration systems are come with a host of advantages:they separate mixtures physically. No additives are necessary and the process temperature is not restricted. Filtration with ceramics is a mild, highly selective process without phase transformation. Also, operational costs are limited by closed production cycles and continuous processes.

We manufacture multitubular inorganic ceramic membrane system for a wide range of applications for water filtration, wastewater and industrial processes. We have collaborated with ceramic membranes manufacturers and select the right & suitable membranes for a specific application. The systems are made in house with stringent process and quality conditions. Major advantages of our ceramic membrane systems are

We are one of the leading eminent manufacturers and suppliers of a excellent range of Industrial RO Plant (Reverse Osmosis Plant)to our clients. It is a Industrial / Commercial range products. All these products are manufactured using quality raw material, latest technology and advanced machinery procured from trusted vendors of the market. Our products are highly demanded in the industry for its features like maximum efficiency, longer functional life and high functionality. Owing all these features our products are highly applauded by our clients across the region. Our product range also includes Mineral Water Plant Industrial RO Plant 1000 Liter, and Industrial Reverse Osmosi Plant. It is available in all range from 100 LPH to 100000 LPH.

Reverse Osmosis (RO) is the process, in which water is pressurized through a semi permeable membrane. As a result of this, as shown in the below depicted schematic diagram, water will pass through the membrane surface while the dissolved and particulate materials are left behind. When the pressure is applied to the concentrated solution, water is forced through the membrane from the concentrated side to the dilute side. This process is known as Reverse Osmosis.

The application of Reverse Osmosis to the solution of problems in water treatment requires an understanding of the basic mechanisms involved in the process, the limitations of reverse osmosis and the pre treatment requirements.

Reverse osmosis utilizes the unique properties of a Imported semi- permeable membrane to allow fluid to pass while restricting the flow of Dissolved Ionic material. With pressure applied to impure water on one side of such membrane materials, pure water will pass through, leaving most of the impurities behind. The rejection of the dissolved ionic material is a function of both Molecular weight and Ionic charge. For example, we can expect a nominal 90 % rejection of Sodium Chloride, which means that the product water passing through the membrane will have a concentration of salt approximately One-tenth that if the feed water. The rejection of calcium carbonate (Hardness) will be nearly 95%. While most metallic salts will be rejected at a rate of 98% to 99%.

Reverse Osmosis (RO) is a process of physical separation of dissolved solids and minerals present in water. This technology uses the principle of osmosis, wherein the mineral concentration of raw water is reduced by applying high pressure through a semi-permeable membrane.

BT WATER TREATMENT PVT.LTD have introduced the revolutionary concept of directly treating the effluent through membrane systems and recycling of water.

We are design low fouling hydrophilic membranes system having high COD and BOD tolerances. These membranes are able to handle high TDS and SS loads and are able to take in TDS and COD of about 40, 000 ppm directly.

The smooth surface and its near neutral to negative charge gives the added advantage of it being resistant to biofilm formation and fouling.Our membrane systems clubbed with an evaporator will make an industry almost zero discharge industry thereby reducing pollution related problems and making the company eco-friendly.

Our effluent treatment systems have been supplied for treating effluents from Textile, Dyeing, Biotech & Pharma, PCB manufacturing, Vegetable Oil Manufacturing, Pesticides industries, Oil & gas etc. The supplied staged systems enable recoveries of 80 to 85% of the wastewater.

Membrane bioreactors for wastewater treatment is a combination of a suspended growth biological treatment method, usually activated sludge, with membrane filtration equipment, typically low-pressure microfiltration (MF) or ultrafiltration (UF) membranes. The membranes are used to perform the critical solid-liquid separation function. In activated sludge facilities, this is traditionally accomplished using secondary and tertiary clarifiers along with tertiary filtration. The two general types of MBR systems are vacuum (or gravity-driven) and pressure-driven systems. Vacuum or gravity systems are immersed and normally employ hollow fiber or flat sheet membranes installed in either the bioreactors or a subsequent membrane tank. Pressure driven systems are in-pipe cartridge systems located externally to the bioreactor.Membrane bioreactors for wastewater treatment is a combination of a suspended growth biological treatment method, usually activated sludge, with membrane filtration equipment, typically low-pressure microfiltration (MF) or ultrafiltration (UF) membranes. The membranes are used to perform the critical solid-liquid separation function. In activated sludge facilities, this is traditionally accomplished using secondary and tertiary clarifiers along with tertiary filtration. The two general types of MBR systems are vacuum (or gravity-driven) and pressure-driven systems. Vacuum or gravity systems are immersed and normally employ hollow fiber or flat sheet membranes installed in either the bioreactors or a subsequent membrane tank. Pressure driven systems are in-pipe cartridge systems located externally to the bioreactor.

Industries are under increasing regulatory pressure to treat and eliminate industrial wastes. BT has been addressing industries needs though development of Membrane recycling system for application of food & Beverages industries, pharmaceutical and bulk drugs industries , sugar & distilleries, etc. this membrane technology treat organics base effluent only if effluent contain in solvent than this system is not working properly

The MBBR system consists of an aeration tank (similar to an activated sludge tank) with special plastic carriers that provide a surface where a biofilm can grow. The carriers are made of a material with a density close to the density of water (1 g/cm3). An example is high-density polyethylene (HDPE) which has a density close to 0.95 g/cm3. The carriers will be mixed in the tank by the aeration system and thus will have good contact between the substrate in the influent wastewater and the biomass on the carriers.[2]

To prevent the plastic carriers from escaping the aeration it is necessary to have a sieve on the outlet of the tank. Moving Bed Biofilm Reactor (MBBR) processes improve reliability, simplify operation, and require less space than traditional wastewater treatment systems.

MBBR 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.

This technology provides cost-effective treatment with minimal maintenance since MBBR processes self-maintain an optimum level of productive biofilm. Additionally, the biofilm attached to the mobile biocarriers within the system automatically responds to load fluctuations.

The MBBR system is considered a biofilm process. Other conventional biofilm processes for wastewater treatment are called trickling filter, rotating biological contactor (RBC) and biological aerated filter (BAF). Biofilm processes in general require less space than activated sludge systems because the biomass is more concentrated, and the efficiency of the system is less dependent on the final sludge separation. A disadvantage with other biofilm processes is that they experience bioclogging and build-up of headloss. [1]

Activated Carbon Filter is widely accepted system in water filtration techniques. The treated water is free from chloramines (chlorine and ammonia mixture) and organic compounds; therefore, best for discharge and production use. Activated Carbon Filter is also utilized in pre-treatment for ro water plant and dm plant as the treated water keeps these systems safe from oxidation or organic fouling.

An activated carbon filter (ACF) works on the principle of adsorption; filter medium adsorbs or reacts with a pollutant molecules then filtered water is drained out. Activated carbon which is used as medium to remove contaminants is natural material derived from coconut shell, lignite, bituminous coal etc. further, activated by chemical or steam under absence of oxygen with high temperature around 1000C. Specific contaminants can be removed by employing blends of various carbons.

There are some limitations of activated carbon filters (ACF); uses are limited to wastes with low organic concentrations (< 5%) and very low inorganic concentrations (< 1%). Removing highly soluble organics or those with low molecular weights are also out of their capabilities. An activated carbon filtration system is unable to remove all of contaminants; such as, microbes, sodium, fluoride and hardness from water; however, special activated carbon water treatment is necessary for removing lead and other heavy metals. In addition, disposal process of contaminated carbon is complicated if not regenerated.

There are two types of activated carbons available, Granules Activated Carbon (GAC) and Powdered Activated Carbon (PAC); choosing which one is best suitable for your application is not a difficult task. In general, Granule Activated Carbon is made by steam activation of coal and is widely used in purifying drinking water, whereas Powdered Activated Carbon is produced by steam activation of lignite coal under carefully controlled conditions and is used in treating (remove toxic organics along with BOD, COD and TOC) industrial wastewater, process water and highly contaminated municipal wastewater.

We design, manufacture and install activated carbon filters (ACF) for industrial, commercial and domestic water treatment. Our ACFs utilize special highly activated carbons and are configured to meet industry specific requirements and flow rates. Often called pressure carbon filter (PCF), these filtration systems assure optimal carbon utilization, widely used in laboratory, commercial and industrial water treatment applications, where these units play a crucial role in pre-treatment for reverse osmosis, deionizer and softener plants. As an option, these ACFs are also fitted with steam sterilization system for regeneration of activated carbon bed.
From hundreds of nationwide installations, we have gained necessary technical experience in activated carbon filtration that makes us confident in providing you right suggestions and budgetary quotations. We assure you of competitive price, unmatched water quality and dedicated after sales support anywhere in India.

The Pressure Sand Filter/Multigrade Sand Filter is a depth filter that makes use of coarse and fine media mixed together in a fixed proportion. This arrangement produces a filter bed with adequate pore dimensions for retaining both large and small suspended particles. This filter performs at a substantially higher specific flow rate than conventional filters. Specific flow rates of 15 30 M/Hr. have been successfully obtained for treating water containing 50-25ppm suspended solids respectively to produce a filtrate with less than 5ppm. The Multigrade sand filter can handle feed water upto 25 NTU turbidity and the treated water from this range of filters will have

Nanofiltration (NF)is a relatively recent membrane filtration process used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening (polyvalent cation removal) and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter.

Nanofiltration is also becoming more widely used in food processing applications such as dairy, for simultaneous concentration and partial (monovalent ion) demineralisation.

Nanofiltration is a membrane filtration-based method that uses nanometer sized through-pores that pass through the membrane. Nanofiltration membranes have pore sizes from 1-10 nanometers, smaller than that used in microfiltration and ultrafiltration, but just larger than that in reverse osmosis. Membranes used are predominantly created from polymer thin films.[1] Materials that are commonly used include polyethylene terephthalate or metals such as aluminum.[4] Pore dimensions are controlled by pH, temperature and time during development with pore densities ranging from 1 to 106 pores per cm2. Membranes made from polyethylene terephthalate and other similar materials, are referred to as track-etch membranes, named after the way the pores on the membranes are made.[5] Tracking involves bombarding the polymer thin film with high energy particles. This results in making tracks that are chemically developed into the membrane, or etched into the membrane, which are the pores. Membranes created from metal such as alumina membranes, are made by electrochemically growing a thin layer of aluminum oxide from aluminum metal in an acidic medium.

Nanofiltration is a membrane filtration-based method that uses nanometer sized through-pores that pass through the membrane. Nanofiltration membranes have pore sizes from 1-10 nanometers, smaller than that used in microfiltration and ultrafiltration, but just larger than that in reverse osmosis.

Membranes used are predominantly created from polymer thin films. Materials that are commonly used include polyethylene terephthalate or metals such as aluminum. Pore dimensions are controlled by pH, temperature and time during development with pore densities ranging from 1 to 106 pores per cm2.

Membranes made from polyethylene terephthalate and other similar materials, are referred to as track-etch membranes, named after the way the pores on the membranes are made. Tracking involves bombarding the polymer thin film with high energy particles. This results in making tracks that are chemically developed into the membrane, or etched into the membrane, which are the pores. Membranes created from metal such as alumina membranes, are made by electrochemically growing a thin layer of aluminum oxide from aluminum metal in an acidic medium.

Nanofiltrationis sometimes used to recycle wastewater, as it offers higher flux rates and uses less energy than a reverse osmosis system.The design and operation of nanofiltration is very similar to that of reverse osmosis, with some differences. The major difference is that the nano membrane is not as "tight" as the reverse osmosis membrane. It operates at a lower feedwater pressure and it does not remove monovalent (i.e., those with a single charge or valence of one) ions from the water as effectively as the RO membrane

DM Plant is an Ion exchange technology used to remove salts (cations and anions) from water. Soluble chemical compounds, when dissolved in water, become ionized; that is their molecules dissociate into positively and negatively charged components called ions.

DM Water systems produces high quality water free from any kind of minerals. It operates on the principle of ion exchange, degasification and polishing for treating water and removing ions. Demineralization technology is one of the cost effective solutions for treatment of water. These systems are widely used to treat water in the field of steam, power, process, and cooling.

Varieties of Demineralized Water Systems:

Feed water is passed through two small polystyrene beds filled with ion exchange resins. The cations present in water get exchanged with hydrogen ions in first bed. And the anions are exchanged with hydroxyl ions, in the second bed.

After the exchange, the quality of water is as follows: