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The high-alkalinity wastewater generated from aluminum factory is treated by ultrafiltration-electrodialysis integrated technology. Firstly, an ultrafiltration device is used for pretreatment of alkaline wastewater to make permeation solution meet the influent requirement of electrodialyzer and enrich the aluminum therein; secondly, the ultrafiltration permeation solution is adjusted by electrodialysis...
Mainly containing organic materials, the printing and dyeing wastewater is a kind of industrial pollution with complex composition and high colority, which is difficult to be treated. With the large volume of new auxiliary and slurry applied to the modern textile industry, the biodegradability rate of organic pollution decreased and it is more difficult to be treatment. Comprehensively considered...
In the dissertation, the treatment of chromium containing wastewater using sawdust which is a low-cost biosorbent. The influences of physical and chemical parameters such as pH value, reaction time and temperature and the initial concentration of metallic ion on the adsorption process were investigated by batch adsorption. When the pH value 6, reaction temperature 323 K, dosage of sawdust 6 g/L, the...
The disposal technology of the acid mine drainage of gold copper mine with milk of lime for neutralization/precipitation in a high density sludge (HDS) method was studied. The results show that, comparing with the traditional lime neutralization, the consumption of lime can be reduced by 33.3%, the water content of the sludge produced is lowered to 67.6%. By adopting this method, the treatment cost...
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