Effluent Treatment Plant for Textile Industry
In an Industrial sector, it is important to pay attention to the wastewater management. With the fast development of industries, more and more harmful toxins are discharged into the environment.
This leads to serious environmental risks. Textile industries are the most water-consuming industries and also generate more wastewater too. Which is why it is mandatory to limit hazardous wastewater discharging from the textile industries by setting up an Effluent Treatment Plant.
Textile sectors generate effluents of extremely variable composition which is why the wastewater treatment system plays a vital part. An Effluent Treatment Plant is the best option for a safe environment from the textile waste and it results in cost and environment savings with excellent treatment efficiency.
Importance of an Effluent Treatment Plant in Textile Industries:
Effluent Treatment Plant (ETP) is the most effective and technically advanced treatment system which is designed to treat effluent or waste generated from various establishments like industries. The various components of the Effluent Treatment Plant will depend on the characteristics of the effluent, for example, depending on the type of effluent is to be processed. There are different types of ETPs are available depending on the quality and quantity of the effluent.
Textile industries generate huge amounts of wastewater which varies greatly in composition and containing various chemicals used in dyeing, printing and other processes within the industry. Discharging of untreated effluent from textile industries is highly harmful to the natural environment, causing pollution to nearby water and soil. To get rid of this problem, an Effluent Treatment Plant plays an important role in textile industries by protecting the environment from the harmful effect of wastewater.
Treatment process sequence involved in Effluent Treatment Plant for Textile industry:
The untreated textile wastewater from different sections consists of high levels of Total Suspended Solids, dyes, chemicals & auxiliaries, metal toxicants and Biochemical Oxygen Demand which must be treated before they are discharged to the environment. When wastewater passes through the Effluent Treatment Plant, toxins are removed and the quality of the water is improved to a standard level, allowing for final discharge to the environment without any risk.
The structure which is often used together in an Effluent Treatment Plant is Physical, Chemical and Biological. Generally, Effluent Treatment Plant consists of four levels of treatment which undergoes in a sequence are briefly described below:
1. Preliminary Treatment:
It is also called pretreatment which involves a physical mechanism to treat wastewater. It involves screening which uses bar screens to remove large solids like pieces of rags, fabric, yarn, lint, sticks; that may cause damage to the equipment of the Effluent Treatment Plant. Then the wastewater is moved to the next level.
2. Primary Treatment:
It involves physical and chemical mechanisms for the treatment of wastewater. When wastewater enters into the primary tank, it stays for a long time and as a result, the heavier particles settle to the bottom and lighter particles float to the surface. In this treatment, the settled and floatable materials are eliminated by using flocculation and coagulation process, then it is passed to secondary treatment.
3. Secondary Treatment:
Wastewater that enters into the secondary tank is free from physical particles. Most of the Effluent Treatment Plants use a biological treatment which involves an aerated lagoon, an activated sludge process, trickling filter and an oxidation pond for the removal of a Biochemical Oxygen Demand but activated sludge process is the most functional biological oxidation method employed for the treatment of wastewater. In this stage, around 80% of organic waste will be removed and then transferred to the tertiary treatment.
4. Tertiary Treatment:
It involves a physical, chemical and biological mechanism to remove residual suspended solids, dissolved solids and more that are not removed in the preceding treatment levels. Depending on the wastewater condition, several disinfection agents like chlorine, ozone, UV light are used. Wastewater after this treatment is finally fit for disposal or for further use.
Top 5 benefits of Effluent Treatment Plant for Textile Industry:
Effluent Treatment Plants greatly minimises the damage done to the environment and also results in benefits for the industry. There are several advantages of the ETP and here are the top five benefits:
1. It can ensure you are in compliance with environmental rules and regulations.
2. It recycles/transforms wastewater into clean and safe reusable water.
3. It is the best way to reduce waste from your industry.
4. It is beneficial to the environment by removing unsafe contaminants.
5. A properly maintained Effluent Treatment Plant will help you save money in the future.