Effluent Treatment Plant (ETP)
- Effluent Treatment Plant (ETP) is most cost Effective & technically proven system to remove the unwanted, hazardous chemicals from the wastewater to meets the statutory pollution control requirements, especially for chemicals, pharmaceuticals, phosphating and electroplating wastewaters.
- We undertake turnkey project of various capacities as per the client's requirement.
- We also deals in Turnkey Sewage Treatment Plants (STP)
- Very cost effective: Less initial investment.
- Compact and proven design: required very minimum area for mounting.
- Quality products and piping items: special sludge pump and total corrosion free HDPE piping & FRP/Epoxy coated MS tanks.
- Water recycle: You can recycle treated water to some of your processapplications
- Easy Operation and maintenance: Plant is easy in operation and anyunskilled person can operate it, after proper training
- Flexible design: Starting from 500 Lit/day to 50,000 Lit/day capacities
- Recurring Expenses: Economical plant operating cost.
The cost effective way to remove unwanted oils from coolants and parts washers, but with all the quality that you expect from Envicare Effective. Smaller capacity models removes up to 3-4 Lit of oil per hour. Very compact structure .Use it almost anywhere a flat surface is available for mounting. Portable. Weighs less than 5-6 Kg, installs in no time, and runs on 230-v power. Complete. Put it to work right out of the box. Available in two types 1. Disc type 2. Belt type.Available in two types
Salient Features :
- Most inexpensive way to remove oil from water.
- Saves coolants by removing tramp oil.
- Conserves parts wash water by removing oily wastes.
- Prevents plugging of spray heads and filters.
- Reduces fluid disposal costs.
Coolants and Cutting Fluids :
- Skimmed oil can be recycled and reused as a lubricant or fuel.
When machine coolants become contaminated with tramp oils, four things usually occur
- Quality of machined parts is reduced.
- In many cases, smoke will begin to appear in the shop, causing irritation to workers on the job
- The fluid takes on a "rotten egg" odor.
Skimmers that remove tramp oils solve these problems and typically pay for themselves within a few months.
Sewage Treatment Plant ( STP Process )
The following process description and schematic flow diagram will assist in the understanding of the treatment processes used for the Wastewater Treatment Plant.
The Wastewater Treatment Plant is divided into five principal chambers;
Anaerobic chamber - anaerobic treatment
Aerobic chamber - aerobic treatment
Clarification chamber - sludge settlement and removal
Disinfection chamber - contact time with chlorine
Pumpout chamber - discharge to disposal system
Raw wastewater is initially received into the anaerobic chamber. Approximately 30 50% of the suspended solids settle out in this chamber where they undergo anaerobic digestion. The anaerobic digestion process is carried out by microorganisms which have the ability to feed, grow and multiply in the absence of free oxygen. In addition, settled sludge and skimmed material returned from the clarification chamber are further digested in this chamber. The plant is sized to enable these microorganisms to maintain a sufficient population naturally without the need for the addition of proprietary biological products.
The partially treated wastewater, still containing the colloidal and dissolved solids which represent approximately 65% of the pollution loading, flows from the anaerobic chamber to the aerobic chamber. Air is introduced to the liquid in this chamber by means of a compressor and diffusers, maintaining aerobic (free dissolved oxygen) conditions. The oxygen enriched effluent flows about packs of submerged media having a large surface area on which bacteria and other microorganisms thrive, forming a biological film. These microorganisms have a different growth process to those in the anaerobic chamber in that they utilise the dissolved oxygen in the effluent, while consuming the dissolved and colloidal organic matter as food to create new cell growth and stable oxidised products. The air pattern causes the liquid in the chamber to pass through the media in a discreet flow pattern and to have intimate contact with the microorganisms.
The process differs from ordinary suspended growth systems in that it is more stable and also allows the growth of sub-surface anaerobic microorganisms beneath the surface film of aerobic microorganisms. This allows anaerobic bacterial action to check the media growth, thereby reducing the biological sludge accumulation. Nevertheless, as the thickening of material on the media occurs, some sloughing off will take place.
The multiple compartment design of the aerobic chamber ensures that no short-circuiting can occur, preventing the possibility of partially treated wastewater passing to the clarification chamber. The diffused aeration system allows the air to be introduced below the media packs.Basically the reaction in the aerobic chamber converts the dissolved and non settle able (colloidal) solids into carbon dioxide and a biological floc, which, under quiescent conditions, will settle.
Following aeration, effluent flows into a circular hopper bottomed clarification chamber, where the biological floc (or sludge) settles under quiescent conditions. Settled sludge from the bottom of the chamber and floating material are returned to the anaerobic chamber. From the clarification chamber, the effluent is drawn off below surface level and flows through the chlorinator to the disinfection chamber.
This continuous return of sludge to the anaerobic chamber ensures continuous fluid movement in the plant even with zero inflow and keeps the system "live" during periods of extended vacancy.