| 2 | Design, Engineering, Supply, Installation and Commissioning of 100% FRP based modular and package type sewage treatment plant, specially designed for underground applications with tertiary treatment as per the details given as under:-
(a) The STPs should be capable to treat waste water by using the appropriate design to achieve the treated water parameters as per CPHEEO/NGT standards and as per details given herein.
(b) The main treatment plant should be completely underground with certain outdoor parts like Exhaust vents, Blowers, Air Pipes and Manholes, also the Stilling Chambers, Bar Screen Chambers, Oil and Grease Traps (Wherever and whichever feasible with flexibility to keep some of it underground) all such components are required to be available to approach from ground level.
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| 4 | (e) Treated water will be reused for arboriculture and for flushing purpose, however in rainy season the provision should be made dispose off the excess water in sewage line of municipal coorporation. The scheme to include tertiary treatment system like, Chemical Dozing, Multigrade Pressure Filters and Activated Carbon Filters in 100% FRP construction to achieve the desired parameters. An outdoor semi-underground, covered sump of RCC construction to collect the clear treated water is included in the scope of work which will be one 75 KL sump for 0.5 MLD Plant and one 50KL for 0.3 MLD Plant in intermediate and final stage configuration and will be part of this schedule only. The filter feed to tank / sump of RCC construction. Submersible pumps of appropriate capacity and design to be provided in both the treated water sumps, for pumping the treated water to arboriculture areas, for two-three hours in each shifts (Once in the morning and once in evening). Necessary electric works, controls, switch gears and cables etc to be catered for.
(f) The scope of work includes complete design (As per the availability of site which is 25 x 20 mtrs for 0.3 MLD and 55 x 15 mtrs for 0.5 MLD STP plants including working space), drawings, excavation, removal of surplus soil out of the Ministry of Defence Land not than 1.5 Kms distance, backfilling, compacting, manholes, exhausts, treatment, reactor technology and all required Civil, Mechanical and Electrical Works Components, Disinfection System, Pipes, Cables, Controls, Monitors, Switchgears, Excavation, Manhole Chambers Foundations, Motors, Blowers, MCCBs, Sensors, Starters, Automation Components complete in all respect and all as required to cater to clean setup and an efficient system to treat the waste water and achieve the requisite parameters and re-use as enumerated here and elsewhere. Any minor items, components, sub-systems not specificaly mentioned but essentially required is considered included in the quoted rates and nothing extra shall be payable to contractor on this account.
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| 5 | (g) The STP shall be designed to treat the influent sewage water and achieve the outlet water parametres as per following details and in accordance with NGT latest norms:-
S No Parameter Inlet Outlet Unit
1 pH 6.0 6.5-8.5 mg/l
2 BOD 250 <10 mg/l
3 COD 425 <50 mg/l
4 Oil & grease 15.0 <10 mg/l
5 Nitrate Nitrogen (Total) Upto 50 <10 mg/l
6 TSS Upto 200 <20 mg/l
7 Faecal Coliform per 100ml Nil
(h) The system shall have SCADA based capabilities to acquire data and to automate and monitor the opcration of the plant.
(j) Online continuous effluent parameter monitoring system to measure and display the BOD, PH, COD, TSS and residual chlorine employed in the system along with data logging capability of upto 10 days data should be shown at operator room on computer screen at an interval of upto one hour. Flow meter of appropriate type and size with digital display and data logging duly connected to central control panel shall be installed in clear water pipe line to measure the outflow.
(k) The entire design, scheme, schematic including OEMs drawings and design shall be got approved from CWE office before procurement and commencement of the treatment plant. Any changes, modification, clarification sought by CWE office in fulfillment of the contract conditions shall be met by the contractor without delay and without any financial liability. A period of sixty days shall be accounted for final approval of the design of the system design drgs and components.
(l) Contractor should provide testing of treated water every month by NABL lab.
(m) Capacity of STP plant to be installed and commissioned is as under:- | | |
