Integrated Wastewater Treatment Equipment for Treating Organic Wastewater
Release date:
2023-04-12
Author:
Network
Organic wastewater is wastewater primarily composed of organic pollutants. It readily leads to eutrophication and poses significant environmental risks. So, what methods can integrated wastewater treatment systems employ to address this issue? The following provides a detailed overview.
Organic wastewater is wastewater primarily composed of organic pollutants. It readily leads to eutrophication and poses significant environmental risks. So, what methods can be employed by integrated wastewater treatment systems to address this issue? The following provides a detailed overview.
1. Ultrasonic degradation: The use of ultrasonic waves to degrade organic pollutants in water, particularly recalcitrant organic contaminants, is a novel water‑pollution‑control technology that emerged in the 1990s.
2. Treatment method: oxidation–adsorption process. After diluting high-concentration wastewater, preliminary coagulation and adsorption are carried out using coal powder, followed by catalytic oxidation with Fenton’s reagent and acidic coagulation, and then further coagulation and adsorption with coal powder. The coal powder used for adsorption can be incinerated after treatment, resulting in no secondary pollution and lower costs compared to using activated carbon as the adsorbent.
3. Extraction: In particular, extraction–separation methods based on reversible complexation reactions exhibit high efficiency and selectivity in the separation of dilute organic solutions, holding great promise for the treatment of recalcitrant organic wastewater.
4. Concentration Method: The concentration method exploits the relatively low solubility of certain pollutants by evaporating most of the water, thereby concentrating the pollutants and causing them to precipitate or separate out. This method is simple to operate, well‑established, and can achieve partial recovery of valuable substances, making it particularly suitable for treating saline organic wastewater.
5. Physicochemical methods: Physicochemical processes are often employed as a pretreatment step in the treatment of organic wastewater. The purpose of pretreatment is to recover valuable components from the wastewater or to treat recalcitrant, biologically難降解 substances, thereby reducing organic matter, enhancing biodegradability, lowering the biochemical treatment load, and improving overall treatment efficiency.
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