Effluent Treatment Plant What is ETP plant and ETP working Process

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Effluent Treatment Plant: What is ETP plant and ETP working Process • An Effluent Treatment Plant (ETP) or Waste Water Treatment Plant (WWTP) is a unit plant where various physical, biological and chemical processes are used to change the properties of the waste water by removing harmful substances in order to turn it into a type of water that can be safely discharged into the environment. • How does ETP work? • The operation of the effluent treatment plant is divided into three categories. Primary Treatment involves separating sludge from the liquid using Sedimentation tanks. Secondary treatment involves the removal of biological or organic matter to reduce the bacterial population. Tertiary wastewater treatment often works by using a combination of physical and chemical processes to remove harmful microbiological contaminants from wastewater. • Design of ETP • The design and size of the ETP depends upon: • • Quantity and quality of the industries discharge effluent. • • Land availability. • • Monetary considerations for construction, operation maintenance. • • Area dimension depends on: •  Quality of wastewater to be treated, •  Flow rate •  Type of biological treatment to be used . • • In case of less available land, CETP (Common Effluent Treatment • Plant) is preferred over ETP • Treatment Levels Mechanisms of ETP • • Treatment levels: •  Preliminary •  Primary •  Secondary •  Tertiary (or advanced) • • Treatment mechanisms: •  Physical •  Chemical •  Biological • What are the chemicals used in ETP? • As Per MPCB, Below is the list of general chemical used in ETP • 1. For pH neutralization: Acids (HCl) and base (NaOH) • 2. Coagulant / Settling Aids: Aluminium Sulphate, Ferric Aluminium Sulphate, Ferric Sulphate, Ferric Chloride, these may be independent or in combination with Poly Electrolytes (Polymers) • 3. For Specific Ion removal, chemicals required as per chemistry of treatment. • 4. Nutrients: Urea, Di-ammonium Phosphate • 5. Disinfectant: Chlorine, Bleaching Powder (Sodium Hypo-chlorite), Ozone • 6. Adsorption / Absorption: Activated Carbon • 7. Ion Exchange – based on the specific ion to be removed. • Visit: [https://www.netsolwater.com/what-is-e...] • Follow Us: [https://www.netsolwater.com/] • [ / netsolwater ] • [ / netsolwater ] • [ / netsolwater ]

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