Water Supply, Irrigation & Sanitation Tenders

20 NB CS PIPE GRADE B WITH FITTINGS.

(d) OIL AND GREASE TRAP/GRIT CHAMBER:- oil and greese trap/grit chambers shall be constructed. The sewage shall move to oil and greese trap/grit chamber from the secreen chamber through gravity. The levels shall accoprdingly be decided as approved by GE. Note-chamber shall be measured and paid seprately in respective sch. (e) EQUALIZATION TANK:- The equalization tank shall be constructed as per approved drawing. (f) SEWAGE TREATMENT UNIT:- The sewage shall be pumped of STP unit. The Sewage treatment plant shall be of package type with 20KLD capacity having microprocessor based control with all mechanical & civil works, with suitable heating arrangement. The STP unit shall consist of all componets required for satisfactory functioning of STP with inlet and outlet sewage characterististics as mention below. The STP shall the basic data about the inlet sewage and required for outlet sewage are as under:- Inlet Sewage characteristics at Naugam Garrision. pH-6.5, BOD-249, COD-423.2, TSS-225, Inlet Temp-(-10), Ammonical nitrogen-148.5 Total Phasphate-21.8 Fecal Coliform-6000000 Treated(Effluent) Sewage Characetistic after treatment PH BOD COD TSS Inlet Temp Oil & Grease Fecal Coliform