Sewage Treatment Plant

Sewage Treatment is the process of removing contaminants from wastewater and household sewage, both runoff (effluents), domestic, commercial and institutional. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce an environmentally safe fluid waste stream (or treated effluent) and a solid waste or treated sludge) suitable for disposal or reuse (usually as farm fertilizer). Using advanced technology, it is now possible to re-use sewage effluent for drinking water.

MBBR / FAB Treatment

MBBR / FAB Treatment of effluents with micro organisms developed as biofilms on biochips in a aeration tank, so as to reduce the pollutant load (COD/BOD) in a Secondary Treatment process is called as Moving Bed Biofilm Technology. Due to Providing Large surface area via biochip the micro organisms will not easily come out from the system and they develop biofilms on the carrier element/biochip to easily degrade the organic material and to reduce the pollutants (COD/BOD) load. The biofilm carrier elements are being kept suspended in the water by air from the diffusers in the aerobic reactors, and by means of a Mixer in the reactors. The fluidised aerobic bioreactor (FAB) is based on the concept of suspended growth as well as attached growth processes. The media has a specific gravity less than that of water. Hydraulic currents set by aeration facilitate fluidisation of the media.

SBR Sequential batch reactors

SBR Sequential batch reactors are influent processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand(COD) to make suitable for discharge into sewers or for use on land. The SBR is an advanced biological aeration type treatment plant designed to produce a very high quality offinal effluent.
SAFF
SAFF The submerged aerobic fixed film process (SAFF) also known as tricking filters comprises of specially designed media that facilitate attached fixed film growth of the microorganisms. The aerobic environment in the SAFF reactor is achieved by using fine bubble diffused aeration, which also serves to maintain liquid in a completely mixed regime. Biological growth on the media surface of trickling filters converts dissolved organic waste material into by products like carbon dioxide, nitrates, water and biological solids which are later removed by clarification. Submerged Aerobic Fixed Film & Needs a smaller settling tank, due to higher settling rate of sludge. Requires skilled monitoring.

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