DCSEM/CQD/QSC/ Biogas-AMC/NIT/25/21-22 dtd 13.01.2022

Amount

OPERATION Removal of unwanted waste from wet garbage received from H&CM section and weighing the suitable wet garbage for processing to Biogas plants, loading on platform for fine seggregation,chopping & crushing the wet garbage and mixing of desired quantity of water & feeding into crusher units including satisfactory operation of all the machineries of Biogas plants(6x500kg each) and handing over the unwanted garbage to H&CM section.Daily checking of healthiness of Biogas plant machineries, condition of digesters in respect of pH values, etc. and all other works as required for satisfactory operations of plants, as directed by Engineer- in- Charge. Note: 1.To run the plant as a minimum of 6 operators and 4 helpers are required on daily basis. 2.To avoid formation of cakes in digester tanks adequate manpower for stirring the material in primary/main digester tank shall be deployed.Removal of chockage from main digester tank shall be carried out as and when required.Shutdown for 1-2 days for removal of cakes should be done as required. 3.Charging of all tanks with good quality cowdung are in 2 months.Three digesters to be charged at a time to make other three digesters available for processing. (Note:-Cowdung required for the work will be paid under relevant item.) 4.Daily processing of wet garbage should be around 300 kgs each tank (not applicable for plants under preventive maintenance) and the plants shall be operate as per practice vogue. However this can be improved as feasible.

PREVENTIVE MAINTENANCE Quarterly Preventive maintenance of Biogas plant's equipments like-pumps and motors(upto 5 HP), starters,compressor units,crusher units,etc. Attending daily complaints all as per terms & conditions, scope of work & as per the clause no.1 mentioned in Annexure -I & as directed by EIC (Qty = 12 Months).

SS 304 Blade for Chrusher Fabrication, Supply , Installation Test and Commissioning of Supply of SS 304 Blade 240mm dia and 6 mm thick to be fabricated as per drawing/actual and as directed by Engineer-in- charge

FRESH COWDUNG Supply of good quality cowdung culture in all of the digester tanks. Approximately total of 1500 kg per annum.(i.e.250 kgx 6 nos. Didigester tankS = 1500 kg) (Qty:-4 times per annum)

PAINTING Spray Painting of Main Digester tank, Pre-digester tank, Slurry tank, Holding tank, Floating dome, air compressor, pipes, Operator stand and other equipments related to plant with 2 coats of red oxide and 1 coat of synthetic enamel paint of M/s Asian / Berger make, naming & numbering of tanks, pipes,(arrow marks on pipe line) direction of rotation of pump set, ect. at plat site , Anushaktinagar. NOTE: 1.Before applying of paint external steel surfaces of machines & accessories etc. shall be thoroughly cleaned to remove rust / scale. 2. Job / work shall be completed with in one year from the date of issue of work order, failing which 10% of quoted rate against respective item per day will be levied.

WELDING AND FABRICATION Fabrication, Supply and fixation of suitable metallic fixtures /M.S or S.S. . support or stand for plat equipments, NRV, repair / fabrication of base plate for compressor, feeding tables, pump set, covers for man hole, suction chambers & support for pipe lines etc by using all levels of steels stricture like MS or S.S. angles, channels, I- beam, MS flats, MS plate, chequered plate & Ms bar etc .with two coat of steel primer & one coated of synthetic Enamel paint of M/s Asian / Berger make & complete all as per required & directed by EIC.

HIRING OF HYDRA Hiring of Hydra for lifting, & moving of digester tanks, dome and heavy pipes/specials etc. (to complete the job. NOTE: a) Hiring for 8 hrs will be considered as one job. b) If the breakdown is attended is less than 8 hrs than JCB shall be utilized for balance hrs as per instruction & directed by EIC with in Anushaktinagar.

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