Chemical Wastewater Treatment

Solution：

Chemical wastewater is mainly organic matter and salt. The wastewater enters into the IVECDEST low temperature vacuum distillation system and finally extracts more than 90% clear distillation liquid and leave the remaining 5% ~ 10% high salt liquid. The high concentrated liquid into VESALT scraper low temperature vacuum drying crystallization system and finally obtains dry solid crystal salt with moisture content ≤15%. Wastewater vapor condense into distillate and is collected to the bucket. Water production rate can reach more than 99%, the transparent distillate can be reused or achieve discharge standards.

Application：

Chemicals

Coal Chemical Industry

Bio-pharmaceuticals

Petrochemical Industry

Brief Introduction:

Chemical Wastewater Classification

1. Waste water containing organic matter, mainly from the basic organic raw materials, synthetic materials, pesticides, dyes and other industries the wastewater;

2. Wastewater containing inorganic substances, such as inorganic salts, nitrogen fertilizer, phosphate fertilizer, sulfuric acid, nitric acid and soda ash and other industries discharged wastewater;

3. Contains both organic and inorganic wastewater, such as alkali, photographic materials, coatings and other industries.

Basic Characteristic

1. The water quality composition is complex with a lot of by-products and the reaction raw materials are often solvent substances or ring structure compounds, which increases the difficulty of wastewater treatment;

2. High levels of pollutants in wastewater. This is due to the incomplete and raw materials, or produce a large amount of solvent used in the medium into the waste water system;

3. There are many toxic and harmful substances. There are many organic pollutants in fine chemical wastewater that are toxic and harmful to microorganisms. Such as halogen compounds, nitro compounds which have antiseptic effect of dispersant or surfactant, etc.;

4. More biorefractory substances, low B/C ratio and poor biodegradability;

5. High wastewater chroma.

Treatment Difficulties:

1. Demand volume of production process water and cooling water consumption in chemical products production is very big. Backward production technology, outdated equipment, sewage disposal to shunt, high water consumption, water recycle and recycling utilization rate is low;

2. The water quality of chemical wastewater is complex and the content of pollutants is high;

3. Most of the pollutants in wastewater are toxic, such as heavy metals, lead, cadmium, etc.

The above characteristics shows complexity of chemical wastewater and the difficulty brought to the treatment.

Because of the complex composition of these waters, they must be managed or treated externally at the plant prior to discharge. In our zero waste production application center, embellish blue company of experts for many years continuously development.

Process Diagram:

Chemical wastewater is mainly organic matter and salt, wastewater into VESALT scraper low temperature vacuum drying crystallization system, finally obtain dry solid crystal salt, solid crystal salt moisture content ≤15%. The water vapor in the wastewater condenses to form a distillate, which is collected into a clear water bucket. The water yield can reach more than 99%, the water quality is clear and transparent, and the distillate can be reused as middle water or meet the discharge standard.