OUR PROCESS

Primary Treatment at CETP

The waste water is received through conduit pipelines at CETP which passes through bar screen and grit chamber for neutralization & then to equalization tank & transferred using Raw Effluent Transfer pump to Physico Chemical Treatment section of the CETP i.e. Flash Mixers. Hence effluent is given treatment with Ferrous , Lime solution & PAC in mixing channel. Effluent from mixing channel is taken to Primary clariflocculator where coagulation of suspended & precipitated particle take place.

Secondary Treatment at CETP

The supernatant water is transferred to newly developed aeration tank then to second aeration tank for biological treatment where as the sludge from primary clarifier is filled into decanter. Activated sludge process is selected for biological treatment for effluent. Here soluble BOD is stabilized by oxidation of organic matter by microorganism. Microorganisms are supplied with oxygen and nutrient necessary for their metabolism. Oxygen required is provided by air blower through disc type diffuser membrane to achieve high rate of oxygen transfer efficiency. Mixed liquor overflow from Aeration tank is taken to secondary clarification process for the separation of micro-organism from treated waste water under gravity. Bottom sludge from secondary clarifier is returned back to Aeration tank and recycle ratio is decided based on the design MLVSS level in the aeration tank. Excess biomass is discharged through sludge handling system. The supernatant water from aeration tank is transferred to Multi Grade filter and Activated carbon filter for removal of color & odours.

TEXTILE WASTE EFFLUENT TREATMENT

  • Inlet Chamber

    Effluent from the RCC NP-4 conduit pipe is taken to the inlet chamber for Flow measurement. Flow meter is installed at inlet chamber.

  • Screen Chamber

    A bar screen chamber is used to remove large objects, such as rags and plastics, from effluent.

  • Grit Chamber

    Grit is the heavy mineral material found in the influent in the treatment plant. It consists of gravel, sand, broken glass, fragments of metal and inorganic solids which have subsiding velocities or specific gravities greater than organic putrescible solids present in effluent. Grit chambers are used to remove grit present in the wastewater.

  • Equalization Tank

    The main function of the equalization tank is to act as a buffer: to collect the raw incoming effluent that comes at widely fluctuating rates and pass it on to the rest of the treatment plant at a steady flow rate.

  • Mixing Channel

    A flash mixer is a chamber that contains mechanical stirrers, which is designed to assure fast, thorough, mixing of lime and ferrous sulphate for the purpose of creating floc.

  • Clariflocculator

    Clariflocculator is a combination of flocculation and clarification in a single tank. It has two concentric tanks where inner tank serves as a flocculation basin and the outer tank serves as a clarifier.

  • Aeration Tank (Activated Sludge Process) & Secondary Clarifier

    Activated sludge process is selected for biological treatment for effluent. Here soluble BOD is stabilized by oxidation of organic matter by microorganism. Microorganisms are supplied with oxygen and nutrient necessary for their metabolism. Oxygen required is provided by air blower through non clog type diffuser membrane to achieve high rate of oxygen transfer efficiency. Mixed liquor overflow from Aeration tank is taken to secondary clarification process for the separation of micro-organism from treated waste water under gravity. Bottom sludge from secondary clarifier is returned back to Aeration tank and recycle ratio is decided based on the design MLVSS level in the aeration tank. Excess biomass is discharged through sludge handling system.

  • Clarifier Treated Water Tank

    Eleifend mi in nulla posuere sollicitudin aliquam ultrices sagittis orci. Faucibus pulvinar elementum integer enim. Sem nulla pharetra diam sit amet nisl suscipit. Rutrum tellus pellentesque eu tincidunt. Lectus urna duis convallis convallis tellus. Urna molestie at elementum eu facilisis sed odio morbi quis

  • Activated Carbon

    Activated carbon filtration is an adsorptive process in which the contaminant is attracted to and adsorbed onto the surface of the carbon particles. The efficiency of the adsorption process is influenced by carbon characteristics (particle and pore size, surface area, density and hardness) and the contaminant characteristics.

Gallery