Annual repair and maintenance of sewerage scheme system chamba town

Amount

Operation running and maintenance of sewage treatment Plant at Bargah 1.501 MLD capacity Including testing of sewage effluent samples from the plant on daily basis including peak hours and bringing alteraation in process such as recycling of sludge, sludge withdrawal and disposal appropriately to maintain appropriate MLSS ( Mix, Liquid, Suspended, Solid), MLVSS (Mix,Liquid,Volatile, Suspended Solid) F/M ratio (Food to Microorganism Ratio) appropiately to ensure sewage effluent standard within Prescribed limit on specified below,frequent cleaning of screens, removal of silt from silt channels, keeping the surrounding of plants all premises in neat and clean condition, odour free, maintaining of all electrical and mechanical equipment in running condition and to make all the defects good arising in civil structure from time to time. The sewerage treated should confirm to the below mentioned effluent parameters. Description of items Inlet chamber = 1 No. Screen Channels = 2 Nos. Grit channel = 2 Nos, By-pass channel = 1 No. Parshal flume = 2 Nos. Aeration tank = 2 Nos (Comprising aerators 2Nos. 15 HP each and Sludge recirculation pumps = 2 Nos. 5.0 HP each Filterate re-circulation pump= 2 Nos. 3 HP each) Secondary settling tank = 2 Nos, Sludge thickner = 1 No. Complete re-circulation sludge system, Chlorine contact tank = 1 No Bleaching powder solution tanks=3 Nos, Pump house, Lab.building All inter-connecting arrangements Sludge Drying Beds Raw Septage Characterstics Parameters Unit Inlet Ph 6.5-8.5 BOD mg/1 375 COD mg/1 650 TSS mg/1 650 Treated Efluent Parameters Parameters Unit Inlet Ph mg/1 6.5-8.5 BOD mg/1 20.00PPM COD PPM 250.00PPM TSS PPM 24 PPM Fecal Coliform MPN/100ml 100.00

ENVIRO CONNECT

Dogra Construction Company Pvt Ltd