生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2015年
3期
457-462
,共6页
城市尾水%活性炭滤池%植物系统%回用
城市尾水%活性炭濾池%植物繫統%迴用
성시미수%활성탄려지%식물계통%회용
city tail water%advanced treatment%activated carbon filter%plant system%reuse
为探索适合城市污水厂尾水深度净化经济、有效的处理技术系统，使出水水质达到回补当地地表水源要求，为地区水环境健康与水质安全保障提供理论依据和示范。以城市污水处理厂尾水为研究对象，通过小试试验建立适合城市污水厂尾水深度净化的组合系统，该组合系统包括间歇曝气生物活性炭滤池与S型立体植物沟组合。系统运行的时间为129 d，每隔一定天数进行取样，测定其中TN（总氮）、NH3-N（铵态氮）、TP（总磷）、COD、溶解性有机物等进、出水营养指标参数变化，并利用综合水质标识指数法对出水水质进行评价。结果表明：该系统能明显降低尾水中上述污染物的质量浓度，试验期间出水TN，TP的去除率分别达到50%，70%以上，且出水总氮含量维持在10 mg·L-1以下，其中最低时总氮质量浓度为2.6 mg·L-1。进水总磷质量浓度范围在0.56~2.97 mg·L-1之间，经过上述系统处理后总磷质量浓度可以控制在0.2 mg·L-1以下。单独生物滤池单元处理后出水综合水质标识指数在5.632~3.510之间，平均综合水质类别可以达到地表水Ⅳ标准；组合植物系统处理后，出水综合标识指数在3.510~2.510之间，平均综合出水水质可以达到地表Ⅱ类水质的要求。上述研究结果表明该深度组合工艺可以进一步提高城市污水厂出水水质，并达到回补地表水四类水质的设计要求。
為探索適閤城市汙水廠尾水深度淨化經濟、有效的處理技術繫統，使齣水水質達到迴補噹地地錶水源要求，為地區水環境健康與水質安全保障提供理論依據和示範。以城市汙水處理廠尾水為研究對象，通過小試試驗建立適閤城市汙水廠尾水深度淨化的組閤繫統，該組閤繫統包括間歇曝氣生物活性炭濾池與S型立體植物溝組閤。繫統運行的時間為129 d，每隔一定天數進行取樣，測定其中TN（總氮）、NH3-N（銨態氮）、TP（總燐）、COD、溶解性有機物等進、齣水營養指標參數變化，併利用綜閤水質標識指數法對齣水水質進行評價。結果錶明：該繫統能明顯降低尾水中上述汙染物的質量濃度，試驗期間齣水TN，TP的去除率分彆達到50%，70%以上，且齣水總氮含量維持在10 mg·L-1以下，其中最低時總氮質量濃度為2.6 mg·L-1。進水總燐質量濃度範圍在0.56~2.97 mg·L-1之間，經過上述繫統處理後總燐質量濃度可以控製在0.2 mg·L-1以下。單獨生物濾池單元處理後齣水綜閤水質標識指數在5.632~3.510之間，平均綜閤水質類彆可以達到地錶水Ⅳ標準；組閤植物繫統處理後，齣水綜閤標識指數在3.510~2.510之間，平均綜閤齣水水質可以達到地錶Ⅱ類水質的要求。上述研究結果錶明該深度組閤工藝可以進一步提高城市汙水廠齣水水質，併達到迴補地錶水四類水質的設計要求。
위탐색괄합성시오수엄미수심도정화경제、유효적처리기술계통，사출수수질체도회보당지지표수원요구，위지구수배경건강여수질안전보장제공이론의거화시범。이성시오수처리엄미수위연구대상，통과소시시험건립괄합성시오수엄미수심도정화적조합계통，해조합계통포괄간헐폭기생물활성탄려지여S형입체식물구조합。계통운행적시간위129 d，매격일정천수진행취양，측정기중TN（총담）、NH3-N（안태담）、TP（총린）、COD、용해성유궤물등진、출수영양지표삼수변화，병이용종합수질표식지수법대출수수질진행평개。결과표명：해계통능명현강저미수중상술오염물적질량농도，시험기간출수TN，TP적거제솔분별체도50%，70%이상，차출수총담함량유지재10 mg·L-1이하，기중최저시총담질량농도위2.6 mg·L-1。진수총린질량농도범위재0.56~2.97 mg·L-1지간，경과상술계통처리후총린질량농도가이공제재0.2 mg·L-1이하。단독생물려지단원처리후출수종합수질표식지수재5.632~3.510지간，평균종합수질유별가이체도지표수Ⅳ표준；조합식물계통처리후，출수종합표식지수재3.510~2.510지간，평균종합출수수질가이체도지표Ⅱ류수질적요구。상술연구결과표명해심도조합공예가이진일보제고성시오수엄출수수질，병체도회보지표수사류수질적설계요구。
In order to explore suitable, economic, and effective technical systems for purification and reuse of sewage treatment plant effluent for surface water resources, and provide the theoretical basis and technical support for region water environment health and security. This study took city sewage treatment plant effluent as study object and established a pilot combined system to treat the city tail water, the combined system including intermittent aeration biological activated carbon filter and S type stereo plant ditch. The system running for 129 days,Every certain number of days sampling to determination the nutrition parameters change of TN (total nitrogen), NH3-N (ammonium), TP (total phosphorus), COD, dissolved organic matter in the water inlet and outlet. In this study, the comprehensive water quality identification index method also was used to evaluation of water quality. The results showed that: the system reduced significantly the TN and TP mass concentration of the effluent during the test, the removal rate of TP reached 50%, and more than 70% of TN respectively, and TN mass concentration was maintained at below 10 mg·L-1, the minimum total nitrogen mass concentration was 2.6 mg·L-1. After plant further adsorption the total phosphorus mass concentration can be controlled below 0.2 mg·L-1. the comprehensive water quality identification index between 5.632~3.510, after the unit of biological filter water treated, and the average of comprehensive water quality reached the surface of the water category IV standard; after combination of plant system treatment, the integrated identification index reached between 3.510~2.510, average comprehensive effluent quality reached the surface of class II water quality requirements. The research results showed that the depth of the combination process could further improve the city sewage treatment plant effluent quality, achieved the reuse requirements of the water category IV standard.
