Co-conditioning of Wasted Phosphorus-Riched Biological Sludge and Aluminium Sludge

• Main Authors: Kuang-Hung Cheng, 鄭光宏
• Other Authors: Wei-Chin Chang
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/05169702323419089536

碩士 === 國立雲林科技大學 === 環境與安全工程系碩士班 === 92 === Enhanced Biological Phosphorous Removal (EBPR) process was introduced into a conventional activated sludge process for the purpose of phosphate removal. However, wasted phosphorus-riched biological sludge release phosphorus under storage condition. Therefore, sludge conditioning process required phosphorus remove. This study investigated the co-conditioning behavior of wasted phosphorus-riched biological sludge and aluminium sludge Experimental results reveal that aluminium sludge is proposed to play a role of skeleton builder that enhances the compactiblity and remove soluble phosphorus of the wasted phosphorus-riched biological sludge. Single conditioning results showed that cationic polyelectrolyte achieved a better dewaterability; ferric chloride remove soluble phosphorus. Therefore, the study attempted utilizing polyelectrolyte in combination with ferric chloride to proceed dual conditioning experiments. The dual conditioning results revealed that ferric chloride removed soluble phosphorus in the filtrate and polyelectrolyte improve sludge dewaterability.