Tender For work of anuual maintenance of newly handed over 7 nos working chlorine plants of vaccum type chlorinators and mainitainence of 10 nos. calcium and 16 nos. sodium hypochlorite dosing systems installed at various service stations and glrs premises of bwssb including replacement of major spares for a chlorinator unit for a period of 2 years
Tender For repair and maintenance of solar water systems, dosing plants, other equipments and machineries and other connected works under age e/m-ii of ge (n) mamun
Tender For corrigendum : repairing of plate settler, repairing of alum dosing agitator, supply, fitting, fixing of actuator operated valve along with control panel at filter house, repairing of compressor, blower, repairing of flow measuring gauge, repair/replacement - repairing of plate settler, repairing of alum dosing agitator, supply, fitting, fixing of actuator operated valve along with control panel at filter house, repairing of compressor, blower, repairing of flow measuring gauge, repair/replacement of control chamber with all accessories at water treatment plant under mukutmanipur-khatra-ranibandh water supply scheme under khatra sub-division of bankura division, p.h.e. dte.
Tender For purchase of equipments - purchase of equipment, bench top glass insitu airlift photo bioreactor1. vessel capacity: 3 liter borosilicate glass (working volume: two to three liters maximum), vessel hxd ratio 4:1 (400x100mm)2. head plate & bottom plate moc: ss 316l3. ports in top plate: ph sensor; dissolved oxygen (do) sensor; pressure sensor; air in and draft tube; air out; acid/base; sampling; and addition port.4. mixing method: ring sparger to create airlift circulation inside the reactor for uniform mixing and better aeration.5. holders for sensor /adapter / blind stoppers in head plate: ph sensor holder; media double inlet for acid/base dosing; air sparger - ring type for airlift application without stirring, air out with exhaust filter and open/close valve; pressure sensor holder; sampling pipe; blind stopper for un used port; unique suitable ss puncturing needles for sampling, air in, air out, inoculum, feed addition.6. ports in bottom plate with stand: port for temperature sensor; heating finger u-tube heat exchanger; drain.7. holders for sensor / adapter / blind stoppers in bottom plate: holder for temperature sensor, heating finger, u-tube heat exchanger.8. sensors: temperature, gel filled sterilizable ph sensor, & pressure sensor.9. controls and display: modular independent system of ph, temperature, pressure with touch screen graphical display & control; two set point control of ph with three-point buffer auto calibration; aeration by flow meter 0-5lpm with air pump; sterilization controls up to 121 without steam generator along with pressure safety mechanism by independent pressure sensor and digital display & control; automatic digital pressure safety and over temperature safety cutoff and alarm; upgradable control system for future prospective as cstr reactor & dissolved oxygen (do).10. measurement and control range: ph: 2-14; process temperature: 20 to 60 ; sterilization temperature: up to 121 ; and pressure up to 15 psi.11. fixed speed peristaltic pump: for acid/base dosing with teflon non spring head. (2 nos)12. cooling system: chiller cum circulator. chiller temperature range 4 to 40 , bath capacity 5l to cool down the reactor after sterilization and to work process temperature below ambient condition.13. illumination system: two illumination assembly with variable intensity control (1000-3000 lux) around the reactor with independent control switch for photobioreactor, or other application and easy detachable if not in use. 14. essential accessories : silicon tubing for acid/base addition (10m); air in and sampling (10m); water circulation (5m); air vent filters 0.2 micron sterilizable (6nos); and silicon septum (25nos)15. starter kit: spare silicon-o-rings for head plate, bottom plate (1no each), all other ports (5nos each), alen key.16. warranty: one year17. support (must): unconditional onsite technical support shall be provided as and when needed. the supplier must provide complete installation and hands-on demonstration of the equipment at the user site upon delivery.18. the vendor should have a registered presence in india with an authorized local service provider in tamil nadu.
Tender For work of supply, installation and commissioning of frp pp tower scrubbing system and floor mounted rotameter for auto dosing of chlorine along with all necessary parts at heggenahalli, kothnurdinne, jambusavaridinne, gkvk, aero engine and chandra layout glr premises under bwssb
Tender For supply of c pvc sch 80 pipes, fittings and valve for chlorine dosing line at fore bay stage i to iv, 33percent concrete hcl storage and measuring system installed at dm plant stage i/ii at stps, suratgarh