Organic wastewater treatment methods

  Organic wastewater treatment methods

  The methods for treating organic wastewater mainly include physical, chemical and biological treatment methods:

  Physical treatment: including precipitation, filtration, adsorption and other methods. Precipitation is to precipitate suspended matter in wastewater by adding appropriate precipitants, filtration is to intercept solid particles through filter media, and adsorption is to adsorb and remove organic matter by adsorbent.

  Chemical treatment: including oxidation, reduction, neutralization and other methods. Oxidation treatment usually uses oxidants to oxidize organic matter into harmless substances, reduction is to reduce organic matter into relatively stable substances, and neutralization is to add corresponding neutralizers to acidic or alkaline wastewater to make the pH value close to neutral.

  Biological treatment: using microorganisms to degrade organic matter in organic wastewater into harmless substances. Mainly including biological treatment methods such as biological filter, activated sludge method, biological contact oxidation method.

  Membrane separation technology: including microfiltration, ultrafiltration, nanofiltration, reverse osmosis and other membrane separation technologies, which can effectively remove organic matter and soluble salts in wastewater.

  Advanced oxidation technology: such as ozone oxidation, UV photolysis, etc., can efficiently degrade refractory substances in organic wastewater.

  In actual treatment, multiple methods are usually combined for comprehensive treatment to achieve the thorough purification and discharge requirements of organic wastewater. Choosing a suitable treatment method requires considering factors such as the composition, concentration, generation volume and final discharge standard of the wastewater.