Water is one of the most important solvent or component used in the chemical industry. From the water used in formulas, to the water used for mixers and **reactor washing** operations, for a proper management of the whole water cycle, from inlet to final discharge, an **effective wastewater treatment** in the chemical industry is a primary importance issue to face.

## Wastewater treatment in chemical industry: how we treat chemical waste in water

The chemical industry has a significant impact on the environment since its effluents often contain high concentrations of **organic and inorganic compounds**. Many substances used in the chemical industry are toxic, carcinogenic or almost non-biodegradable as, for instance, **surfactant** and petroleum hydrocarbons; for this reason, chemical industry wastewater treatment is essential, now more than ever.

Main activities of this strategic industry can be summarized as:

- synthesis and manufacturing of chemicals
- production of detergents and other products for cleaning
- production of fertilizers, pesticides, herbicides
- production of explosives
- production of additives, colorants, resins and polymers for a wide range of industries
- production of DEMI water for various purposes
- laboratory and analysis tests and trials.

In all these applications, a proper chemical industry wastewater treatment must aim at:

- COD (chemical oxygen demand) reduction
- ammonium reduction
- sulfates reduction
- chlorides reduction

##   
Chemical industry wastewater treatment by evaporation

**EVALED wastewater evaporation systems**, given that they can be adapted, in a simple and effective way, to different treatment needs from time to time, are an extremely reliable and flexible technological solution, as they allow the treatment of a large variety of wastewaters. When possible, they also allow for the **recovery of valuable by-products** or substances which often can be reused or sold as raw matter.  
Evaporation ensures to achieve different goals:

- high quality of distillate
- **water recovery** and **water reuse**
- **ZLD (Zero Liquid Discharge)** when possible
- significant reduction of volume of the waste to be disposed of
- **compliance with discharge limits**

In the chemical industry wastewater treatment, most of the EVALED references worldwide are installations of:



 

 

 



 [    ![](/sites/g/files/dvc4561/files/styles/content_push_teaser/public/image/2025/02/EVALED_Evaporator_Evaporation_Technologies_Wastewater_PCF.jpg.webp?itok=9N0cVXLD)   



 ](/en/evaporators/pc-heat-pump/pc-f-series "PC F Series evaporators for industrial wastewater treatment") 

  

 [PC F Series evaporators for industrial wastewater treatment](/en/evaporators/pc-heat-pump/pc-f-series "PC F Series evaporators for industrial wastewater treatment") 

 Heat pump and forced circulation evaporators 

 

 

    

 

 

 

 

 

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 [   ![](/sites/g/files/dvc4561/files/styles/content_push_teaser/public/image/2025/02/EVALED_Evaporator_Evaporation_Technologies_Wastewater_PC_R_3.jpg.webp?itok=g1HH5dWQ)   



 ](/en/evaporators/pc-heat-pump/pc-r-series "PC R evaporators for industrial waste water treatment") 

  

 [PC R evaporators for industrial waste water treatment](/en/evaporators/pc-heat-pump/pc-r-series "PC R evaporators for industrial waste water treatment") 

 Scraped evaporators with heat pump and forced circulation 

 

 

    

 

 

 

 

 

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 [    ![](/sites/g/files/dvc4561/files/styles/content_push_teaser/public/image/2025/02/RV%20F%2060_noSq.jpg.webp?itok=0kOd0o-H)   



 ](/en/evaporators/rv-mvr/rv-f-series "RV F evaporators for industrial waste water treatment") 

  

 [RV F evaporators for industrial waste water treatment](/en/evaporators/rv-mvr/rv-f-series "RV F evaporators for industrial waste water treatment") 

 Evaporators with mechanical vapour recompression and forced circulation 

 

 

    

 

 

 

 

 

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## Application &amp; products

CHEMICALS PRODUCTION

| Application | Evaled | ADDED VALUE |
|---|---|---|
| Pesticides wastewater | RV, PC | Water recovery, disposal cost reduction |
| Fertilizers wastewater | RV, AC | Product &amp; water recovery, disposal cost reduction |
| Explosives (Nitroglycerin) wastewater | RV, PC | Product &amp; water recovery, disposal cost reduction |
| Detergents (basic) wastewater | RV, AC | Disposal cost &amp; sludge reduction |
| Glues wastewater | PC | Product recovery, disposal cost reduction |
| Process &amp; wastewater treat. Chemicals | RV, PC | Water recovery, disposal cost &amp; sludge reduction |
| Water based inks &amp; paints | PC | Product recovery, disposal cost reduction |
| Floor washing water | RV, PC | Water recovery, sludge reduction |
| Caustic &amp; acid baths | PC | Disposal cost reduction |
| Exhausted chemicals | RV, PC | Product recovery, disposal cost reduction |
| Cooling towers blow-down | RV, AC | ZLD, water recovery |
| Gas scrubber blow-down | RV, AC | Water recovery, disposal cost reduction |
| RO concentrate discharge | RV, AC | ZLD, water recovery, sludge reduction |
| IE regeneration | RV, AC | ZLD, water recovery, sludge reduction |
| New or revamping WWT plants | RV, AC | Water reuse, disposal &amp; oper. costs reduction |





 

 

 



   ![](/sites/g/files/dvc4561/files/styles/media/public/image/2023/06/Specialties.jpeg.webp?itok=bxKkfTKI)   



Capabilities

 

    

    

 

###       Capabilities 

Chemicals  
Pesticide  
Fertilizers  
Explosives  
Chemicals for PW &amp;WW  
Detergents (Basic Chemicals)  
Adhesives  
Water Base Inks &amp; Paints  
Chemical Plants Engineering Companies



 

 

 



 

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 ](/en/references "Case studies") 

 REFERENCES 

 [Case studies](/en/references "Case studies") 

 Discover the portfolio of our solutions and implementations around the world.  
 

 

 

    

 

 

 

 

 

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 [    ![](/sites/g/files/dvc4561/files/styles/content_push_teaser/public/image/2025/02/EVALED_Evaporator_PC_F_4-6_noSq6.jpg.webp?itok=9Zj7TNoJ)   



 ](/en/evaporators "Evaporators") 

 Our Products 

 [Evaporators](/en/evaporators "Evaporators") 

 Discover our EVALED evaporators families and series. 

 

 

    

 

 

 

 

 

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