Top Current Best Industrial Waste Water Treatment Methods

What is Industry handling?

– Wastewater discharged from production stages
– Wastewater from cleaning stages of machinery, tools, factories ...
– Wastewater from staff activities.

Overview of industrial wastewater

The composition and concentration of wastewater depend on the industry and the product of the manufacturing enterprise. Therefore, pollutants in industrial wastewater are diverse.

In general, industrial wastewater has a high content of organic compounds, BOD, suspended solids, highly soluble solids and sulfide compounds. Sometimes wastewater also contains toxic chemicals, heavy metals, and grease. Therefore, the treatment of industrial wastewater is very toxic to humans and the ecological environment.

Typical properties of industrial wastewater

– The color of the Waste Water is brown, nhưng là thường cloudy gray. Nếu bị gặp, nó sẽ là black.
– The smell of waste water is quite uncomfortable due to organic matter decomposing or waste in the production process.
– Wastewater is highly acidic or alkaline, BOD is in the range of 100-300mg / l, COD is usually in the range of 200-500mg / l ...

Methods of treating industrial wastewater

  • Industrial wastewater treatment system

1. Physical and chemical treatment method:

The mechanism of the physicochemical method is to introduce a substance (or compound) that reacts with the impurities present in the waste water. This method removes dirt in the form of non-toxic deposits or solvents.

The physicochemical methods commonly used are: flocculation-flocculation, adsorption, oxidation-reduction, ion exchange, extraction, ...

2. Physicochemical treatment method combined with biology:

The mechanism of this method is to treat industrial wastewater by physicochemical method first, then through biological tank. This method is often applied to industrial parks or businesses that have high levels of pollutant waste, many pathogenic microorganisms ...

Biological methods will decompose organic pollutants with beneficial microorganisms. This is an effective method to treat dissolved organic substances and some other polluting inorganic substances such as H2S, Sunfit, Amonia, Nitrogen, ... This method is divided into 2 categories: anaerobic and aer