Treatment of Industrial Wastewater : Treatment of Printing and Dyeing Wastewater
Xing, Furen (2014)
Xing, Furen
Savonia-ammattikorkeakoulu
2014
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201405229317
https://urn.fi/URN:NBN:fi:amk-201405229317
Tiivistelmä
In this paper, the main topic is the treatment of sewage which is coming from industry. It contains four basic methods of treatment and also introduces five types of sewage. The emphasis of the study is on disposing the printing and dyeing sewage. The target of this paper is to find a suitable way to make the quality of effluent meet the discharging standard. So the thesis describes an imaginary case of a printing and dyeing factory whose sewage must be disposed of. The quantity of the sewage is not so huge. Therefore, the paper aims at finding some right methods to design an appropriate work process by comparing the different treatment methods.
By considering several features of every kind of treatment technology, I finally chose the biochemical contact oxidation process. Because the method is economical and this process suits for small amount of inflow. In the whole work process, it includes adjusting tank, hydrolysis acidification pool, biochemical contact oxidation pool, vertical sedimentation tank, coagulation sedimentation tank, sludge concentrated tank and sludge dewatering room and some other devices.
In my personal opinion, in the future, in the development direction of sewage treatment, prevention should be considered first. For example, we could replace the materials by other new and environmental materials, or improve the consciousness of discharging sewage of all industrial enterprises.
By considering several features of every kind of treatment technology, I finally chose the biochemical contact oxidation process. Because the method is economical and this process suits for small amount of inflow. In the whole work process, it includes adjusting tank, hydrolysis acidification pool, biochemical contact oxidation pool, vertical sedimentation tank, coagulation sedimentation tank, sludge concentrated tank and sludge dewatering room and some other devices.
In my personal opinion, in the future, in the development direction of sewage treatment, prevention should be considered first. For example, we could replace the materials by other new and environmental materials, or improve the consciousness of discharging sewage of all industrial enterprises.