Biennial contract for O and M of Sewage treatment Plant, Pump House and misc. cosmetic maintenance works at Zirconium Complex Plant and Township, Pazhayakayal, Tuticorin -628152.

Operation & Maintenance of Sewage Treatment Plant at ZC plant including all personnel, consumables, accessories, material, tools & tackles necessary for smooth operation of the plant including up keeping of the rooms, STP area and the surroundings neat and clean, maintenance of the Greenary developed in and around STP in ZC Plant, providing fertilizer as required, trimming of Trees , lawn & Hedges, Mulching, Water Ponding for trees as per specification & as directed by the Engineer In Charge. Note: 1. BOD & COD of the Treated water report have to be submitted every month. 2. Logging of all the day to day activity Carried out STP Plant. 3. Recording of all the basic parameter of Treated Water quality ( Day to Day ) like PH, TDS, Conductivity, DO, Turbidity &Etc) 4. Maintaining the required documentation. 5. Minimum one skilled operater and one helper (unskilled) shall be deployed for the work each day.

Supply and replacement of Fine Pore Diffuser (T type) of size 63 mm Dia and 600 mm long in various tank at STP . The Rate inclusive of Material, labour cost, tools & tackles etc.as per specification and as per the direction of Engineer in Charge. Note : Item shall be operated at the time of failure of Existing diffuser.

Supply and Replacement of .157 m3 of filter media of various sizes in layer in the Pressure sand filter (PSF) including the Cost of Sand, removal of existing filter media, cleaning the tank, placing the filter in specified layer, tool & tackles etc. as per the specification and as directed by the Engineer in Charge. Dia of PSF is 0.4 M and Height of PSF is 1.25 M Note: Item Shall be operated once in Six month. Payment shall be made on production of Documentary evidence for the purchase of the filter media. Rate Quoted by you shall be inclusive of Disposal of waste.

Supply and Replacement of .157 m3 of sand of various sizes as a layer in Activated Carbon filter (ACF). The Rate includes the Cost of Sand, Cost of Activated carbon , Cost of Cleaning the Tank, Cost of Restoration of the New Sand, Activated carbon , tool & tackles and etc., as shown in the Drawing, as per specification and direction of the Engineer in Charge. Dia of ACF is 0.4 M and Height of PSF is 1.25 M Note: Item Shall be operated once in Six month. Payment shall be made on production of Documentary evidence for the same. Rate Quoted by you shall be inclusive of Disposal of waste.

Supply and Recharging of Oil lubricant of SS 320 Grade oil in Air blower Pump at STP . The Rate inclusive of Oil, Cleaning of the Pump, inspection of Oil seal, Gland packing, Checking of IR Value of the Pump & Etc as per specification and direction of the Engineer in Charge. Note : Item Shall be operated in every Month. Quantity of oil to be changed is 0.5 litre/month for 2 nos. of blowers. Payment shall be made on production of Documentary evidence for the same.

Supply, replacement, installation & Commisioning of sewage transfer pump as per the specification given below as directed by the Engineer in charge. Type : Submersible Non clog , Capacity: Minimum 2 Cum/hr, Head: Minimum 10 m, Model No. CRI - CSL-CS07-CT ( for reference), Speed: Minimum 2500 RPM , MOC: CI , Rating : Minimum 1HP , Phase & Frequency: 3 Phase, 50Hz.

Supply, replacement, installation & Commisioning of Air blower including suitable electrical motor as per the specification given below as directed by the Engineer in charge. Type : Twin Lobe Rotary Capacity: Minimum 30 Cum/hr Pressure: Minimum 0.40 kg/sq.cm Make : Kay – 42 AC ( For reference) Blower, Electrical Motor ( Suitable), Speed: Minimum 1000 RPM, MOC: CI, Rating : 2HP Phase & Frequency: 3 Phase, 440V, 50Hz

Supply, replacement, installation & Commisioning of return sludge pump including as per the specification given below as directed by the Engineer in charge. Type: Horizontal Centrifugal Non Clog, Capacity: Minimum 0.5 Cum/hr , Head : Minimum 10 m, Speed : Minimum 2700 RPM, Model: CRI SMB 140 ( for reference) , MOC : CI Make, Suction Size: Minimum 40 mm ( Suitable at site), Delivery Size: Minimum 40 mm ( Suitable at site) , Rating 1HP, Phase & Frequency: 3 Phase, 50Hz

Supply, replacement, installation & Commisioning of dosing pump including as per the specification given below as directed by the Engineer in charge. Type: Electronic metering pump, Capacity: Minimum 0-6 l/hr , Head : Minimum 10 m, Speed : Minimum 2700 RPM, Model: CRI or Kirloskar or any other equivalent make , MOC : CI Make, Suction Size: Minimum 40 mm ( Suitable at site), Delivery Size: Minimum 40 mm ( Suitable at site) , Rating 0.25HP, Phase & Frequency: 3 Phase, 50Hz