Watair Envisol Ambawadi, Ahmedabad, Gujarat

Process : These are one of the primary devices that control gaseous emissions, especially acid gases. It is designed to effectively use the energy from the inlet gas stream to atomize the liquid being used to scrub the gas stream. There are two types of Scrubbers : Wet Scrubber - A wet scrubber is used for cleaning air, fuel gas or other gases of various pollutants and dust particles. Dry Scrubber - A dry or semi-dry scrubbing system, unlike the wet scrubber, does not saturate the flue gas stream that is being treated with moisture. Dry scrubbing systems are used to remove acid gases (such as SO2 and HCl) primarily from combustion sources. Advantages : Provides gas absorption and dust collection in a single unit. Can handle flammable and explosive dusts with little risk. Provides cooling of hot gases. Used to reduce particulate emissions in a number of industrial applications There is static fiber in filter material, so it has a good effect to filtrating micro dust and it has a good ability of capturing dust, high dust capacity, and good air permeability. Contaminants Removed : Particulates, toxic or corrosive gases.

Process : It is a simplified operational system that typically provides higher removal performance than usual waste water treatment frameworks. MBBR technology employs thousands of polyethylene bio-film carriers operating in mixed motion within an aerated wastewater treatment basin. Each individual bio-carrier 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. Advantages : Flexible Response to the waste water treatments projects. Lower capital cost Higher BOD/COD removal efficiency. Higher resistance to shock loading. Consistent performance, quick and easy Installations Produces high effluent qualities and tolerates variations in biological and solids loadings. No Backwashes are required, Minimal process monitoring is required releasing valuable operator time. No moving or serviceable parts. Less power requirement. Contaminants Removed : Solids, removal of BOD, removal of Nitrogen and Phosphorous.

Process : It is a Broad- Spectrum treatment technology that removes total suspended solids (TSS), heavy metals, emulsified oils, bacteria and other contaminants from water. It involves changing the particle surface charge, allowing suspended matter to form an agglomeration which helps effectively in removing the suspended solids to sub-micro-meter levels. Advantages : Very low footprint (Very less space is required) Single stage operation, followed by filtration. Sludge volume is very low(70% lower than conventional system) No expertise or man power Operational cost is affordable No or little addition of chemicals Shock loads can be handled Ease of capacity expansion Negligible maintenance Can be completely automatic Easy to Install Contaminants Removed : Total Suspended Solids, Heavy Metals, Bacteria, Emulsified Oils, other charged ionic species.

Solution to Zero Liquid Discharge One of the technology that is based on the process of complete elimination of all liquid discharge from a system. The goal is to reduce the volume of waste water that requires further treatment. It's advantages are as follows: Well designed and aesthetically very good. Completely automatic with microprocessor control. Continuous operation with minimum operating assistance. Solid Waste volumes for disposal to TSDF can be reduced significantly. Highly Energy efficient Easy to install Easy to operate Suitable for numerous applications to achieve ZLD.

Process : It has emerged as an efficient compact technology for municipal and industrial waste water. It is the combination of a membrane process like microfiltration or ultra-filtration with a biological wastewater treatment process. Advantages : Compactness and small layout size of the plant Simple management of the plant, as a result of high degree of automation (low dependence on human factor Small quantity of excess sludge and therewith connected costs Constant effluent quality, regardless of the influent Operation costs are lower than in classical biological plant Complete bacteria removal Possibility of reuse of treated wastewater for irrigation purposes or as process water No odor emission or noise Fast construction, because of relatively small size of the plant No risk of biomass loss Contaminants Removed : Suspended Solids, Micro- Organisms.

Process : Sequencing batch reactors (SBRs), due to its operational flexibility and excellent process control possibilities, are being extensively used for the treatment of wastewater which nowadays is fast becoming contaminated with newer and more complex pollutants. SBR reactors treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the mixture of wastewater and activated sludge to reduce the organic matter (measured as biochemical oxygen demand (BOD) and chemical oxygen demand (COD)). The treated effluent may be suitable for discharge to surface waters or possibly for use on land. Advantages : Little land required High effluent quality Fully automatised Lower initial capital cost Can handle large fluctuations in flow Deeper tanks, better AOTR Contaminants Removed : Total Suspended solid, Removal of Nutrients, Removal of Industrial Residues

Process : Bag-houses are very efficient particulate collectors because of the dust cake formed on the surface of the bags. The fabric provides a surface on which dust collects through the following four mechanisms: Inertial collection Interception Brownian movement Electrostatic forces Pressure drop, filter drag, air-to-cloth ratio, and collection efficiency are essential factors in the design of a bag-house. These are the good Air cleansing solutions, offering our clients more economical way to make work place Environment Neat and Clean. Advantages : Have high collection efficiency for respirable dust. Can use strong woven bags which can withstand intensified cleaning cycle to reduce residual dust build up. Simple to operate. Have small size and fewer bags. There is static fiber in filter material, so it has a good effect to filtrating micro dust and it has a good ability of capturing dust, high dust capacity, and good air permeability. Contaminants Removed : Dust

Process : VOC Scrubbers are used for the removal of volatile organic compounds that are emitted from the industrial processes such as oil, diesel & gas industries etc. We use Venturi wet Scrubbers that are commonly used in industries for air pollution control. Venturi scrubbers are used to capture smaller dust particles, chemical fumes, vapors, VOC’s etc. that are generated in industrial process. The main advantage of venturi scrubber is that it can handle the high temperature gas streams and they can simultaneously remove both pollutant gas and particulates at the same time. Advantages : Can sustain highly corrosive atmosphere. Relatively low pressure drop. High mass transfer efficiency. Require relatively small space. Contaminants Removed : VOC Compounds, Chemical fumes, odor, gases.

Process : We have designed the system to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. It is used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas, handle high-volume dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning system, and a dust receptacle or dust removal system. Advantages : It takes care of intense dust loads. Ability to operate at High temperatures. It helps in eliminating harmful elements from the air and allows worker to work in a safe and cleaner place. Low maintenance requirement Contaminants Removed : Granular solid pollutants, process generated dust, particulate matter

Process : These are used to remove the particles from a gas stream by creating a reverse flow cyclone vortex. These works with the same efficiency over a wide range of flows and pressure. The efficiency of a cyclone separators in collecting finer dusts is highly depends on the amount of centrifugal forces created and longer residence time to allow more dusts to settle down. These two factors increase better separation of particles. Our Multi-cyclone collector, custom designed considering all process parameters, exhausts dust laden air properties and build with outmost quality and efficiency complying to national & international quality and emission standards Advantages : It removes larger pieces of particulate matter. These works best on flue gases that contain large amounts of big particulate matter. Contaminants Removed : Granular solid pollutants, process generated dust, particulate matter.