We are assisting to cater following advanced technologies to get desired results in your plant.
- Membrane bioreactor
- Sequential Aeration tank
- Moving bed bioreactor
- Activated sludge process
- De-nitrification
- Up flow Anaerobic sludge blanket
- Biogas plant
- Advance oxidation process
- Reverse Osmosis
- Multi effect evaporator
- Agitated thin film dryer
- 1. Membrane Bioreactor
Membrane Bioreactor (MBR) integrating biological degradation of waste products with membrane filtration. It composed of two primary parts, the biological unit responsible for the biodegradation of the waste compounds and the membrane module for the physical separation of the treated water from mixed liquor.
- Sequential Aeration Tank (SAT):
It is a fill-and-draw activated sludge treatment system. It is compact, time oriented and capable of removing nutrients from wastewater. All the processes viz. fill, react, settle and decant are carried out sequentially in same tank.
3. Moving Bed Moving Bed Bioreactor (MBBR)
Moving Bed Biofilm Reactor (MBBR) technology use biofilm carriers operating in mixed state 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.
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 bio carriers within the system automatically responds to load fluctuations.
This processes improve reliability, simplify operation, and require less space than traditional wastewater treatment systems.
- Activated sludge Process:
It refers to a mass of microorganisms cultivated in the treatment process to break down organic matter into carbon dioxide, water and other inorganic compounds. The activated sludge process has three basic components: 1) a reactor in which the microorganisms are kept in suspension, aerated and in contact with the waste they are treating; 2) liquid-solid separation; and 3) a sludge recycling system for returning activated sludge back to the process. There are many variants of activated sludge processes, including variations in aeration method and in the way the sludge is returned to the process
- Denitrification
It is essentially for conversion of nitrate to nitrogen gas. It is a natural process carried out by microorganisms when sufficient oxygen is lacking. Hear using oxygen as the final electron acceptor in metabolism nitrate is used. Denitrification releases nitrogen which escapes as an inert gas to the atmosphere while oxygen released stays dissolved in the liquid and thus reduces the oxygen input needed into the system.
Denitrification as a primary treatment helps reducing ammonia and nitrogen content in the treated effluent at lower operating cost as the oxygen input to the system is reduced.
- Up flow anaerobic sludge blanket (UASB):
This technology, is a form of anaerobic digester which is used for wastewater treatment. UASB reactor is a methanogenic (methane-producing) digester that evolved from anaerobic clarigester. UASB uses an anaerobic process whilst forming a blanket of granular sludge which suspends in the tank. Wastewater flows upwards through the blanket and is processed (degraded) by the anaerobic microorganisms. The upward flow combined with the settling action of gravity suspends the blanket. The flow conditions create a selective environment in which microorganisms capable of attaching to each other survive and proliferate. Eventually the aggregates form into dense compact biofilms referred to as "granules".
Biogas with a high concentration of methane is produced as a by-product, and this may be captured and used as an energy source, to generate electricity for export and to cover its own running power.
- Biogas plant:
It is efficient in removal of SS and BOD. When used as a primary treatment followed by secondary aerobic treatment, it is efficient in removal of BOD, COD and nutrients of high strength effluent at a lower opex. This is a simpler and robust anaerobic treatment.
- Advanced oxidation processes (AOPs)
It is a broad sense, are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials from water and waste water by oxidation through reactions with hydroxyl radicals (·OH). This term usually refers more specifically to a subset of chemical processes that employ hydrogen peroxide (H2O2), ozone (O3), and/or UV light.
The AOP procedure is particularly useful for cleaning biologically toxic or non-degradable materials such as aromatics, pesticides, petroleum constituents, and volatile organic compounds in waste water. Additionally, the contaminant materials are converted to a large extent into stable inorganic compounds such as water, carbon dioxide and salts, i.e. they undergo mineralization.
- Reverse osmosis:
It is a process that uses to clean water, for industrial process applications or to convert brackish water, to clean up wastewater or to recover salts from industrial processes.
In reverse osmosis process -like membranes separate purified water from contaminated water. RO is when a pressure is applied to the concentrated side of the membrane forcing purified water into the dilute side, the rejected impurities from the concentrated side being washed away in the reject water. RO can also act as an ultra-filter removing particles such as some micro-organisms that may be too large to pass through the pores of the membrane.
Common membrane materials include polyamide thin film composites (TFC), cellulose acetate (CA) and cellulose triacetate (CTA) with the membrane material being spiral wound around a tube, or hollow fibers bundled together. TFC spiral wound membranes are most used due to its superior strength and durability, higher rejection rates and are more resistant to microbial attack, high pH and high TDS.
- Multi effect evaporator:
A multiple-effect evaporator is an apparatus for efficiently using heat from steam to evaporate water. In a multiple-effect evaporator, water is boiled in a sequence of vessels, each held at a lower pressure than the last. Because the boiling temperature of water decreases as pressure decreases, the vapor boiled off in one vessel can be used to heat the next, and only the first vessel (at the highest pressure) requires an external source of heat and thus saves energy and overall operational cost.
It is widely used for product concentration and has now been used for recovery of water from wastewater which can be reused for industrial operations thus reducing overall fresh water demand of the industry leading zero liquid discharge and sustainable development.
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- Agitated thin film evaporator
Thin Film Dryer is used to dry and collect baggable solids from high TDS solution that comes out of Multi Effect Evaporator after water recovery.
A typical Thin Film Evaporator consists of a tubular heat transfer area with an external heating jacket and a fast-revolving, inner rotor with flexible or rigid wiper elements. The feed product is evenly distributed by the rotor and its wipers over the heating surface, forming a thin liquid film of uniform thickness. This assures excellent heat transfer combined with constant renewal of the product film and provides an even heating and short residence time of the product.
