Arvind Envisol has proprietary technologies for cost-effective water treatment which includes recycling and recovering. Our water
conservation solutions are used across the globe for industrial, commercial, and municipal applications. Water
optimisation is a critical component of modern establishments given the urgent need to save and recover water. We have the
technologies linked with the know-how and experience to provide customised wastewater treatment solutions.


Chemical industrial wastewater contains organic and inorganic matter in varying concentrations. Many materials in this industry are toxic and almost non-biodegradable. Therefore, the wastewater produced in this industry is not very easy to treat. For instance, surfactant and petroleum hydrocarbons among other chemical products that are being used in the chemical industry, reduce the performance efficiency of many treatment unit operations. Several processes can be used in different treatment schemes for chemical effluent.

In general, there are three different stages of treatment:-

1. Primary Treatment /Physio-Chemical Treatment

  • In the chemical industry, oil & grease solvents are present in substantial quantity. To remove it we can use processes like API oil separator, TPI, and DAF. Suspended solids (TSS) and toxic chemicals like chromium, copper, lead, mercury, etc. are removed by sedimentation, coagulation, flocculation processes
  • Recommended process: HRSCC/Primary sedimentation and Dissolved Air Flotation (DAF)

2. Secondary Treatment /Biological Treatment

  • The secondary treatment is carried out by micro-organisms under aerobic or anaerobic conditions and involves the reduction of BOD, COD, and nutrients present in the water. This chemical affects the growth of micro-organism that directly impacts efficiency
  • Recommended process: Membrane Bioreactor (MBR) uses a combination of the activated sludge process with an additional membrane separation process. It can treat high strength organic wastes

3. Tertiary Treatment

  • The tertiary treatment involves the use of filtration process, Ultrafiltration (UF), Reverse Osmosis (RO), and ion exchange to remove the final contaminants in the wastewater. Membrane fouling occurs frequently while treatment due to the presence of toxic chemicals in the effluent
  • Recommended process: Ultrafiltration (UF) (If MBR is not in the treatment scheme) and Reverse Osmosis (RO)

4. Zero Liquid Discharge

  • Evaporator (PFET), Distiller (PFMED), and Crystallizer (MEE) are used further to treat the reject of tertiary treatment
  • Recommended process: Polymeric Film Evaporation Technology (PFET) and Multi-Effect Evaporator (MEE) at the end of all these processes we are able to get approximately 100% of pure water from the effluent fed. With our vast experience and installed base in the textile industry and a thorough knowledge of its various manufacturing processes and also its requirement for uninterrupted water supply