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|Type of Maintenance||Preventive Maintenance|
|Plant Type||Effluent Treatment Plant|
|Feed Flow Rate||100 m3/day|
Here the main work starts to clean the pollutants through the effective water treatment. So plants are established for this process and these plants are called “Effluent Treatment plant”. As the name suggest, it involves removing the pollutants under the water to make it usable for another process and so to make the environment pollution free. Advantages:
- Discharge waste free water
- Eliminates municipal fees
- Production materials can be recovered for re-use
- Recycling of water so eliminates unused water.
According to Department of Environment, effluent must be according to the quality standards set by the government and so the ETP should be established and directed accordingly.Treatments:-
various strategies are being used for waste water treatmentBrine Treatment:
This technology includes the membrane filtration processes, ion exchange processes, evaporation processes etc. every process has its own unique task to filter the water. Basically brine treatment is used to remove the dissolved salt ions or other metals from the water and to maximize the recovery of fresh salts & water.Solids Removal:
solids can be removed through filtration or extra filtration to make the water re-usable.Removal of Bio-Degradable organics:
It is based on the sewage treatment used to clean the rain water etc.Oils and grease removal:
Before using membrane filtration, skimming process can be used to remove the oil or grease from the upper surface of water. Skimming is cost-efficient method to clean the oiling or grease water through the cleaning depends on the solids dissolved in the water. Many oil refineries, chemical plants, natural gas plants are producing effluent water which contains high amount of oils, chemicals & grease etc. These industries use a device called API oil water separator salt which separates the oil and wastewater by knowing the gravity difference between them. API denotes the American petroleum institute who had published the standards to design this separator. Activated sludge process:
It is used to treat sewage & industrial waste water through the following process:-
Trickling filter process:
- Aeration tank is used to inject air in to the mixed waste water
- A settling tank is used to settle the waste sludge.
This is one of the oldest method of treating the sewage or waste water through forcing air flow with the help of plastic bed or by natural convection of air.Treatment of other organics:
it includes adsorption, vitrification, oxidation processing etc to clean the paints, solvents, pesticides etc from the water.Treatment of acids and alkalis, toxic materials:
Toxic materials include zinc, silver etc. which are hard solids which are to be clean with the use specific treatment as per the solids nature. While processing ETP, you must consider the following steps:-
- Which type of solid is present?
- The level of waste water.
- What process is suitable?
- What is the cost budget?
- Cleaning ratio?
Thus effluent treatment plant is designed according the solids and waste dissolved in the water to make it clean and usable again. Kelvin Water Technologies has gain popular name with in short span of period for serving India in the area of repair and maintenance of Effluent Treatment Plants with the help of professionals.