河南机电高等专科学校学报
河南機電高等專科學校學報
하남궤전고등전과학교학보
JOURNAL OF HENAN MECHANICAL AND ELECTRICAL ENGINEERING COLLEGE
2014年
6期
32-35
,共4页
单酯基季铵盐%生物降解性%工艺条件
單酯基季銨鹽%生物降解性%工藝條件
단지기계안염%생물강해성%공예조건
monoester quaternary%biodegradability%process conditions
单酯基季铵盐的生物降解程度受曝气量、接种物浓度、有机物数量、温度等多种环境条件的影响。文章采用二氧化碳生成量法测试水体中单酯基季铵盐生化反应的最佳环境条件。结果显示,恒温水槽温度为25℃,气体流量为16L/h ,接种物浓度为100mgM LSS/L ,有机物浓度为20mgDOC/L时,单酯基季铵盐10d的生物降解率为30.72%,28d的生物降解率为96.24%。依据OECD对有机物生物降解试验的分级标准,单酯基季铵盐属于易生物降解有机物。
單酯基季銨鹽的生物降解程度受曝氣量、接種物濃度、有機物數量、溫度等多種環境條件的影響。文章採用二氧化碳生成量法測試水體中單酯基季銨鹽生化反應的最佳環境條件。結果顯示,恆溫水槽溫度為25℃,氣體流量為16L/h ,接種物濃度為100mgM LSS/L ,有機物濃度為20mgDOC/L時,單酯基季銨鹽10d的生物降解率為30.72%,28d的生物降解率為96.24%。依據OECD對有機物生物降解試驗的分級標準,單酯基季銨鹽屬于易生物降解有機物。
단지기계안염적생물강해정도수폭기량、접충물농도、유궤물수량、온도등다충배경조건적영향。문장채용이양화탄생성량법측시수체중단지기계안염생화반응적최가배경조건。결과현시,항온수조온도위25℃,기체류량위16L/h ,접충물농도위100mgM LSS/L ,유궤물농도위20mgDOC/L시,단지기계안염10d적생물강해솔위30.72%,28d적생물강해솔위96.24%。의거OECD대유궤물생물강해시험적분급표준,단지기계안염속우역생물강해유궤물。
The rate of monoester quaternary biodegradation depends on the temperature and the aera‐tion amount and the inoculum concentration and the concentration of monoester quaternary .T he carbon dioxide evolution test was carried out to test the best biodegradation condition of monoester quaternary . The results show that at 25℃ , and with the gas flow of 16L/h , the inoculum concentration of 100mgMLSS/L and the esterquats concentration of 20mgDOC/L ,a 10 -day biodegradation rate of mo‐noester quaternary is 30.72% ,a 28-day biodegradation rate is 96.24% .According to OECD classifica‐tion standards for organic substance biodegradability experiments ,monoester quaternary belongs to the easy biodegradable organic matter .