Blending And Composting Study of Sewage Sludg

• Main Authors: Cheng-Yuan Chen, 陳證元
• Other Authors: Hwa-Shan Tai
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/93140262943237657276

碩士 === 國立高雄第一科技大學 === 環境與安全衛生工程所 === 97 === Due to the high indensity of population in Taiwan and rapid growth of living class in urban area, domestic wastewater from households has been increased. In order to decrease polluted wastewater, the government has engaging in increasing in building urban sewage system and wastewater treatment plants. However, this creates the problem of enormous amount of sludge treatment. In addition to incineration and landfill, a proper means of treating considerable sludge is to recycle and reuse sewage sludge in the future. In this research, we explore various factors in blending of the sewage sludge, such as adjustment of percentage of C/N and moisture, periods of procedures, and conditions of composting. The result of this research can be applied in factories to offer assistance in terms of sewage sludge. The result of this research shows that the scale of the experiment is affected by the room temperature easily. The sludge from Anpin and Chung Chou shows the same result, which is that percentage of gemmation is over 85%. It does not impede growth. Furthermore, the result is relatively stable and less toxic to gemmation when C/N=10 and percentage of moisture is 30%. The higher the percentage of moisture is, the more easily acidification occurs. In addition, leaf composting does not evoke decomposition in the process of blending.