Wuhan University takes the lead in building the first laboratory wastewater treatment station
2018-10-06 19:01:28
Yesterday (June 7th), the country's first university laboratory wastewater treatment station was built in Wuhan University. After the next month's operation, heavy metals, organic matter and other pollutants in the laboratory wastewater will be extracted and will not be discharged with water.
In China, the wastewater generated by the university's chemical laboratory is generally discharged into the underground sewage pipe network without treatment or simple treatment, and sent to a large domestic sewage treatment plant for centralized treatment.
Due to the complex composition of laboratory sewage, especially heavy metals such as lead, mercury, cadmium and chromium, the facilities of domestic sewage treatment plants are “incapable of doing†and can only be discharged into rivers.
After heavy metals enter the water or soil, they may enter the human food chain through various channels. According to medical data, heavy metals such as lead and mercury can cause nervous system, digestive system and blood diseases in the human body.
According to environmental experts, due to the small amount of laboratory wastewater, there is no professional processing station in universities across the country.
“No more pollution can be let go.†In recent years, the municipal environmental protection department has asked universities to build laboratory wastewater treatment stations.
Wuhan University took the lead in responding with an investment of nearly 2 million yuan to build a laboratory wastewater treatment station in the School of Chemistry and Molecular Sciences.
The station is equipped with international advanced technology by Wuhan Kefa Safety and Environmental Protection Co., Ltd., combining several insoluble solid materials, using their potential difference to reduce the heavy metal ions in the wastewater to metal salts and sedimenting them from the water in a solid state. Siltation is sludge. These sludges will be collected regularly and sent to specialized companies for processing.
The treatment station is currently being commissioned and will be operational next month, handling 150 tons of wastewater per day.
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