Machine Parts

Effluent Treatment Plant as follows Equipment: 1.      Fiber Trap 2.      Screening Tanks 3.      Equalization Tank  4.      Coagulation Tank 5.      Flocculation Tank 6.      Chemical Dosing Tank 7.      Sedimentation Tank 8.      Intermediate Tank 9.      Sand filter 10.    Active Carbon Filter 11.    Post-aeration Tank 12.    Outlet Tank 13.   Sludge Thickening Tank 14.    Sludge Drying Bed

   Sand Filter : 1.         It is made by steel. Facilitated with back wash system. 2.         From the intermediate tank it is passed through this unit by centrifugal             pumps. 3.         It removes the suspended particles remaining from sedimentation tank. 4.         Back wash must be once per day to get the efficiency. Key Process Parameters : TSS, COD and BOD5 at 20C   Active Carbon Filter : 1.         It is made by steel. Facilitated with back wash system. 2.         From the intermediate tank it is passed through this unit by centrifugal             pumps. 3.         It removes the suspended particles remaining from sedimentation tank. 4.         Back wash must be once per day to get the efficiency. Key Process Parameters : TSS, COD and BOD5 at 20C

   Sedimentation Tanks : 1.         Sediment of the clarifier must be collected to the sludge thickening         bed. 2.         Over flow is being taken to the intermediate tank by means of gravity. 3.         Time Interval for sludge removal should not be exceeded 3 hours. Key Process Parameters : TSS at Suparnant (Over Flow), COD and       BOD    Intermediate Tanks : Over flow from sedimentation tank is collected in this tank for further treatment. Key Process Parameter : Level of Water to avoid the dry run of Pumps.

   Chemical Dosing Tank: Two dosing pumps are installed to dose the coagulant and flocculants accordingly. Key Process Parameters : Dosing Chemical.          Sedimentation Tanks : 1.         Sediment of the clarifier must be collected to the sludge thickening         bed. 2.         Over flow is being taken to the intermediate tank by means of gravity. 3.         Time Interval for sludge removal should not be exceeded 3 hours. Key Process Parameters : TSS at Suparnant (Over Flow), COD and       BOD

    Screening Tank/Pit : Where the Influent of ETP is being collected by gravity flow from where the free float and coarse particles are removed. Key Process Parameter :  Free float and Coarse Particles removal.   Equalization Tank : It is RCC tank of capacity 90 m3. Keep continuous mixing by means of agitation by air or any others means. This will help to equalize the load of the effluent. Two Centrifugal pumps are completely dedicated to pump the effluent from this tank to Primary Clarifier. The overflow and dry run of pumps are controlled by auto level switch controller. Key Process Parameters :  Complete Homogenization of Influent,                                                               i.       pH, BOD, COD, Temperature, TSS and Color.

Fiber Trap: Where the Influent of ETP is being collected by gravity flow   from where the coarse particles are removed. Figure Name: Fiber Trap Key Process Parameter of fiber trap : Coarse Particles removal.

Process Operation of Effluent Treatment Plant: The treatment concept is PhysioChemical with Filtration System. Effluent from the sweater washing floor flows by gravity through the drain pipe line and after passing through screener it gravitates to the collection pit from where it is passed to the equalization tank. Untreated homogenized effluent is pumped from equalization tank to the Primary Clarifier. Coagulant flocculants solutions are dosed to on line which is synchronized with effluent pumps. The solid is being separated from clarifier unit. The upper clear water is collected to the intermediate PVC tank of capacity 5000L (Feed forwarding tank for tertiary Treatment) tank and the solid from bottom is transferred to the sludge Thickening Tank. The suparnent (Upper flow) is recycled to the equalization tank and the bottom thicker sludge is transferred to the sludge drying beds by gravity. The treated water from intermediate tank is passed through the multi-grade sand

Boiler operation Boiler working procedure: The boiler is supplied with water by a feed pump. Water enters the boiler through a feed check valve. When the water reaches normal water level which is approximately the middle of the water gauge glasses, the feed pump is stopped by the dual control. The burner is bolted to the hinged front door. Air required for combustion is provided by a forced draught fan which is integral with the burner unit. The furnace receives heat radiant from the flame and the hot gases from the flame give up heat to tubes in the second pass as they travel to the front chamber. Gases turn into front chamber and give up more heat to the tubes in the third pass as they travel to the rear chamber. The gases leave the boiler by the chimney at the top of the rear chamber. As the steam pressure rises the pressure has been shown in pressure gauge. When the pressure is sufficiently high the main stop valve can be opened to allow steam to pa

Control Panel: All electrical equipment's p rewired to a control panel which is normally mounted on the side of the boiler. One also can made by own modulating or sealing dampers and final electrical connections. Most of the boiler connection fit a 3 phase 4 wire to the isolator within the control panel, however the boiler may have been supplied suitable for other electrical configurations. One boiler control panel contain Sequence Time: Sequence Time is used for regulation and flame supervision of the burner. Starters: Starters is used for forced draught fan/oil pump motor and feed pump motor. Fuses, Relays and Switches used for control Functions Indicator light and Alarms used for normal and fault conditions.

Why Boiler Safety Valve is more important? Boiler safety Valve: Boiler safety valve is one of important parts of boiler mounting and fittings. The boiler safety valve ensures that the boiler can not reach to excessive steam pressure, should the boiler limit control fail. The type of safety valve fitted or prepare as British Standard as a high lift type. The safety valve settings has been adjusted prior to the boiler leaving ones manufacturer factory. A plate on the safety valve specifies the operating conditions for which the valve was supplied. Once set the valve setting must not be tempered with. To prevent this the padlock keys should be kept in a safe place under the supervision of responsible qualified person.