横村镇污水处理工程的研究与设计
|
摘要
横村镇位于杭州桐庐县中部,是桐庐中西部山区对外联系的主要通道。分水江自北向南穿越境区,把横村划分成江东和江西两个区域。根据横村镇新规划,横村镇定位于以针织、服装、轻纺业为主的综合发展中心城镇。
进入21世纪,横村镇出现了翻天覆地的变化。随着横村镇建设进程不断深入和加快,原有许多以水景为主的旅游点,如今随污水的侵入,水环境状况恶化加剧。
横村镇作为创建“全国环境优美乡镇”的重要参与者,水环境质量也是评判的重要指标之一,它的建设实施,将从根本上改变目前横村镇污水处理的现状,大大改善当地的水环境质量,使环境更加优美,地域优势更加显著,为促进当地的经济更快速发展奠定坚实基础。
根据桐庐县环保局提供的资料,本设计横村镇污水处理厂的进水水质为: BOD5≤200mg/L;CODCr≤400mg/L;NH3-N≤30mg/L;SS≤250mg/L; TP≤4.5mg/L。
横村镇污水处理厂的出水水质主要控制指标为:
BOD5≤20mg/L;CODCr≤60mg/L;NH3-N≤8(15)mg/L;SS≤20mg/L;TP≤1mg/L。本工程的近期设计规模为2.0万m3/d,远期设计规模为4.0万m3/d。针对本工程中进水为小城镇来水且工业废水所占比例较大的特点,经过对前置厌氧的氧化沟工艺、A2/O工艺、SBR改良工艺—ICEAS工艺方案的比选,最终推荐采用ICEAS污水处理工艺方案。污泥脱水采用机械浓缩脱水工艺。
工程概算总投资6862.22万元,其中管网及泵站为4241万元,污水厂近期为2621.22万元,占地面积为3.56公顷。
本工程的建设,对杭州市的环保事业进程以及分水江流域的污染治理工作都将起到极大的推动作用。
Hengcun Town is located in central Tonglu County, Hangzhou City, which is the main passage for Tonglu County to contact with surrounding area. The Fenshui River passes through Hengcun Town from north to south, and it divides the town into two area. According to the new plan, Hengcun Town will develop toward comprehensive town supported by textile, hosiery, apparel and textile industry. Great changes take place in Hengcun Town in 21 century. With the continuing development, many tour sites especial waterscape are becoming more important. However water environment turn bad for wastewater discharge, and it is indeed a pity for the deteriorating water quality.
Hengcun Town is an important participator in building up“national beautiful scenery town”, and its water quality is also an important indicator for the assessment. The implementation of this project will fundamentally change Hengcun Town’s wastewater treatment situation and will greatly improve its water quality. Hengcun Town will have a more beautiful environment and enjoy a more favorable regional advantage, which forms a solid basis for the local economy to develop more rapidly. According to the actual raw wastewater characteristics, the new design influent parameters of Hengcun wastewater treatment plant is as follows: CODcr≤400 mg/L BOD5≤200 mg/L SS≤250 mg/L NH3-N≤30 mg/L TP≤4.5 mg/L
The new design effluent parameters of Hengcun wastewater treatment plant is as follows: CODcr≤60 mg/L BOD5≤20mg/L SS≤20 mg/L NH3-N≤8 (15) mg/L TP≤1 mg/L
The short-term design capacity of this project is 20,000 m3/d, the long-term design capacity is 40,000 m3/d. Since the influent wastewater comes mainly from small towns, and industrial wastewater occupies a large proportion, ICEAS process is finally recommend after comparisons among three schemes including oxidation ditch, A2/O, and ICEAS. Mechanical thickening and dewatering is adopted for treatment of the sludge.
The total estimated investment is 68,620,000 yuan, among which the pipe network and the pump station are 42,410,000 yuan. The short-term investment is 26,212,2000 yuan and the floor area is 3.56 ha.
The execution of this project will remarkably promote the development of Hengcun Town’s environment protection and the water pollution control around Fenshui River watershed.
进入21世纪,横村镇出现了翻天覆地的变化。随着横村镇建设进程不断深入和加快,原有许多以水景为主的旅游点,如今随污水的侵入,水环境状况恶化加剧。
横村镇作为创建“全国环境优美乡镇”的重要参与者,水环境质量也是评判的重要指标之一,它的建设实施,将从根本上改变目前横村镇污水处理的现状,大大改善当地的水环境质量,使环境更加优美,地域优势更加显著,为促进当地的经济更快速发展奠定坚实基础。
根据桐庐县环保局提供的资料,本设计横村镇污水处理厂的进水水质为: BOD5≤200mg/L;CODCr≤400mg/L;NH3-N≤30mg/L;SS≤250mg/L; TP≤4.5mg/L。
横村镇污水处理厂的出水水质主要控制指标为:
BOD5≤20mg/L;CODCr≤60mg/L;NH3-N≤8(15)mg/L;SS≤20mg/L;TP≤1mg/L。本工程的近期设计规模为2.0万m3/d,远期设计规模为4.0万m3/d。针对本工程中进水为小城镇来水且工业废水所占比例较大的特点,经过对前置厌氧的氧化沟工艺、A2/O工艺、SBR改良工艺—ICEAS工艺方案的比选,最终推荐采用ICEAS污水处理工艺方案。污泥脱水采用机械浓缩脱水工艺。
工程概算总投资6862.22万元,其中管网及泵站为4241万元,污水厂近期为2621.22万元,占地面积为3.56公顷。
本工程的建设,对杭州市的环保事业进程以及分水江流域的污染治理工作都将起到极大的推动作用。
Hengcun Town is located in central Tonglu County, Hangzhou City, which is the main passage for Tonglu County to contact with surrounding area. The Fenshui River passes through Hengcun Town from north to south, and it divides the town into two area. According to the new plan, Hengcun Town will develop toward comprehensive town supported by textile, hosiery, apparel and textile industry. Great changes take place in Hengcun Town in 21 century. With the continuing development, many tour sites especial waterscape are becoming more important. However water environment turn bad for wastewater discharge, and it is indeed a pity for the deteriorating water quality.
Hengcun Town is an important participator in building up“national beautiful scenery town”, and its water quality is also an important indicator for the assessment. The implementation of this project will fundamentally change Hengcun Town’s wastewater treatment situation and will greatly improve its water quality. Hengcun Town will have a more beautiful environment and enjoy a more favorable regional advantage, which forms a solid basis for the local economy to develop more rapidly. According to the actual raw wastewater characteristics, the new design influent parameters of Hengcun wastewater treatment plant is as follows: CODcr≤400 mg/L BOD5≤200 mg/L SS≤250 mg/L NH3-N≤30 mg/L TP≤4.5 mg/L
The new design effluent parameters of Hengcun wastewater treatment plant is as follows: CODcr≤60 mg/L BOD5≤20mg/L SS≤20 mg/L NH3-N≤8 (15) mg/L TP≤1 mg/L
The short-term design capacity of this project is 20,000 m3/d, the long-term design capacity is 40,000 m3/d. Since the influent wastewater comes mainly from small towns, and industrial wastewater occupies a large proportion, ICEAS process is finally recommend after comparisons among three schemes including oxidation ditch, A2/O, and ICEAS. Mechanical thickening and dewatering is adopted for treatment of the sludge.
The total estimated investment is 68,620,000 yuan, among which the pipe network and the pump station are 42,410,000 yuan. The short-term investment is 26,212,2000 yuan and the floor area is 3.56 ha.
The execution of this project will remarkably promote the development of Hengcun Town’s environment protection and the water pollution control around Fenshui River watershed.
引文
[1] Kuenen J. G.. The nitrogen and sulphur cycles[M]. Cambridge:ambridge University Press, 1987.
[2] Robertson L.A. Microbial control of pollution[M]. Cambridge:Cambridge University Press, 1992.
[3] Kuenen J. G., Robertson L.A. Combined nitrification -denitrification process[J]. EMS Microbiol.Rev., 1994,15(2):109-117.
[4] Kuai L, Verstraete W. Autotrophic denitrification with elemental sulphur in small-scale wastewater treatment facilities[J]. Environ. Tech., 1999,20:201-209.
[5] Kshirsagar M., Gupta A.B., Gupta S.K. Aerobic denitrification studies on activated sludge mixed with Thiosphaera pantotropha[J]. Environ. Tech., 1995,16:35-43.
[6] Munch EV. Simultaneous nitrification and denitrification in bench-scale sequencing batch reactors[J]. Water Res., 1996,30:277-284.
[7]唐丽贞.缺氧—好氧生物脱氮技术在焦化废水处理中的应用[J].化工环保, 1994,14(4):216-220.
[8]陈凤冈,李伟光,潘桂民,等.缺氧—好氧生物膜法脱氮技术的研究[J].中国环境科学, 1999,15(2):135-138.
[9]杨晓奕,师绍填,蒋展鹏,等.混凝两相厌氧—缺氧—好氧工艺处理睛纶废水的研究[J].给水排水, 2001,27(6):40-45.
[10] Zhang Min. Cone plant wastewater treatment by fixed biofllm system for COD and IVH4+-N removal[J]. Water Science and Technology, 1998,32(2):519-527.
[11]张统.CASS I艺处理小区污水及中水回用[J].给水排水, 2001,27(7):64-66.
[12]陆大友.清镇朱家河污水处理厂工艺设计[J].贵州工业大学学报, 2002,31(1):98-101.
[13]李峰,吕锡武.序批式反应器(SBR)处理氨氮废水的初步研究[J].江苏环境科技, 1999,35(2):14-17.
[14]孙剑辉,魏瑞霞.缺氧/好氧(SBR)工艺去除亚铰法造纸废水中的氮[J].环境科学,2001,43(4):117-119.
[15]陈郭健.高盐度、高氨氮肠衣废水的治理研究[J].环境与开发,1995,10(1): 5-7.
[16] Boran Z,KazuoY. Seasonal change of microbial population and activities in a building wastewater reuse system using a membrane separation activated dude process[J]. Water Science and Technology,1996,34(5):295-306.
[17] Kazuhuro T,Massakau N,Naomicni M,et al. Application of immobilized nitrifies get to removal of high ammonium nitrogen[J]. Water Science and Technology,1994,29(9):241.
[18]曹国民,赵庆祥,龚剑丽,等.新型固定化细胞膜反应器脱氮研究[J].环境科学学报,2001,28(2):189-193.
[19]彭超英,朱国洪,尹国,等.人工湿地处理污水的研究[J].重庆环境科学,2000,33(6):43-45.
[20] TurkO.,Mavinic D. S. Maintaining nitrite build-up in a system acclimated to free ammonia[J]. Water Res.,1989,23(11):1383-1388.
[21] Van Benthum W.A.J. Nitrogen removal using nitrifying biofilm growth and denitrifying suspended growth in a biofilm airlift suspension reactor coupled with a chemostat[J]. Water Res.,1998,32(7):2009-2018.
[22] Jetten M S M. Towards a more sustainable municipal wastewater treatment system[J]. Water Science and Technology,1997,35(9):171-180.
[23] Rittmann B.E., Langeland W.E. Simultaneous denitrification with nitrification in single-channel oxidation ditches[J]. JWPCF,1985,57(4):300-308.
[24] Gupta S.K., Raja S.M. Simultaneous nitrification-denitrification in a rotating biological contactor[J]. Envir. Tech.,1994,15:145-153.
[25] Bertanza G. Simultaneous nitrification-denitrification process in extended aeration plants: pilot and real scale experi ences[J]. Water Science and Technology,1997,35(6): 53-61.
[26] Yoo H.,Ahn K.H. Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrate in an intermittently-aerated reactor[J]. Water Res.,1999:33(1):145-154.
[27] Zhao H.W.,Mavinic D.S. Controlling factors for simultaneous nitrification and denitrification in a two-stage intermittent aeration process treating domestic sewage[J]. Water Res.,1999, 33(4): 961-970.
[28]高廷耀,周增炎,朱晓君.生物脱氮工艺中的同步硝化反硝化现象[J].给水排水,1998,24(12):6-9.
[29]孟怡,徐亚同.制药废水硝化-反硝化除氮研究[J].化工环保,1999,19(4):204-207.
[30] Fux C,Bochlcr M, HuScr P. Biological treatment of ammonium-rich wastewater by partial nitritation and subsequent anaerobic ammonium oxidation in a pilot plant[J]. Bio-technol,2002,(99):295-306.
[31] Van U Dongcn,Jcttcn M S M,Van Loosdrccht M C M. The SHARON -ANAMMOX process for treatment of ammonium rich wastewater[J]. Water Science and Technology,2001,44(1):153-160.
[32] Straous M. Ammonia removal from concentrated waste streams with the ANAMMOX process in different reac tor configurations[J]. Water Res., 1997, 31:1955-1962.
[33] M.S.M.Jetten,Strous M. The anaerobic oxidation of ammonium[J]. FEMS Microbiol. Rev.,1999,22:421-437.
[34]郑平,冯孝善,M.S.M.Jetten. ANAMMOX流化床反应器性能的研究[J].环境科学学报,1998,18(4):367-372.
[35]王建龙.生物脱氮新工艺及其技术原理[J],中国给水排水,2000,16(2):25-28.
[36]胡勇有,雒怀庆,陈柱.厌氧氨氧化菌的培养与驯化[J].华南理工大学学报,2002,30(11):160-163.
[2] Robertson L.A. Microbial control of pollution[M]. Cambridge:Cambridge University Press, 1992.
[3] Kuenen J. G., Robertson L.A. Combined nitrification -denitrification process[J]. EMS Microbiol.Rev., 1994,15(2):109-117.
[4] Kuai L, Verstraete W. Autotrophic denitrification with elemental sulphur in small-scale wastewater treatment facilities[J]. Environ. Tech., 1999,20:201-209.
[5] Kshirsagar M., Gupta A.B., Gupta S.K. Aerobic denitrification studies on activated sludge mixed with Thiosphaera pantotropha[J]. Environ. Tech., 1995,16:35-43.
[6] Munch EV. Simultaneous nitrification and denitrification in bench-scale sequencing batch reactors[J]. Water Res., 1996,30:277-284.
[7]唐丽贞.缺氧—好氧生物脱氮技术在焦化废水处理中的应用[J].化工环保, 1994,14(4):216-220.
[8]陈凤冈,李伟光,潘桂民,等.缺氧—好氧生物膜法脱氮技术的研究[J].中国环境科学, 1999,15(2):135-138.
[9]杨晓奕,师绍填,蒋展鹏,等.混凝两相厌氧—缺氧—好氧工艺处理睛纶废水的研究[J].给水排水, 2001,27(6):40-45.
[10] Zhang Min. Cone plant wastewater treatment by fixed biofllm system for COD and IVH4+-N removal[J]. Water Science and Technology, 1998,32(2):519-527.
[11]张统.CASS I艺处理小区污水及中水回用[J].给水排水, 2001,27(7):64-66.
[12]陆大友.清镇朱家河污水处理厂工艺设计[J].贵州工业大学学报, 2002,31(1):98-101.
[13]李峰,吕锡武.序批式反应器(SBR)处理氨氮废水的初步研究[J].江苏环境科技, 1999,35(2):14-17.
[14]孙剑辉,魏瑞霞.缺氧/好氧(SBR)工艺去除亚铰法造纸废水中的氮[J].环境科学,2001,43(4):117-119.
[15]陈郭健.高盐度、高氨氮肠衣废水的治理研究[J].环境与开发,1995,10(1): 5-7.
[16] Boran Z,KazuoY. Seasonal change of microbial population and activities in a building wastewater reuse system using a membrane separation activated dude process[J]. Water Science and Technology,1996,34(5):295-306.
[17] Kazuhuro T,Massakau N,Naomicni M,et al. Application of immobilized nitrifies get to removal of high ammonium nitrogen[J]. Water Science and Technology,1994,29(9):241.
[18]曹国民,赵庆祥,龚剑丽,等.新型固定化细胞膜反应器脱氮研究[J].环境科学学报,2001,28(2):189-193.
[19]彭超英,朱国洪,尹国,等.人工湿地处理污水的研究[J].重庆环境科学,2000,33(6):43-45.
[20] TurkO.,Mavinic D. S. Maintaining nitrite build-up in a system acclimated to free ammonia[J]. Water Res.,1989,23(11):1383-1388.
[21] Van Benthum W.A.J. Nitrogen removal using nitrifying biofilm growth and denitrifying suspended growth in a biofilm airlift suspension reactor coupled with a chemostat[J]. Water Res.,1998,32(7):2009-2018.
[22] Jetten M S M. Towards a more sustainable municipal wastewater treatment system[J]. Water Science and Technology,1997,35(9):171-180.
[23] Rittmann B.E., Langeland W.E. Simultaneous denitrification with nitrification in single-channel oxidation ditches[J]. JWPCF,1985,57(4):300-308.
[24] Gupta S.K., Raja S.M. Simultaneous nitrification-denitrification in a rotating biological contactor[J]. Envir. Tech.,1994,15:145-153.
[25] Bertanza G. Simultaneous nitrification-denitrification process in extended aeration plants: pilot and real scale experi ences[J]. Water Science and Technology,1997,35(6): 53-61.
[26] Yoo H.,Ahn K.H. Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrate in an intermittently-aerated reactor[J]. Water Res.,1999:33(1):145-154.
[27] Zhao H.W.,Mavinic D.S. Controlling factors for simultaneous nitrification and denitrification in a two-stage intermittent aeration process treating domestic sewage[J]. Water Res.,1999, 33(4): 961-970.
[28]高廷耀,周增炎,朱晓君.生物脱氮工艺中的同步硝化反硝化现象[J].给水排水,1998,24(12):6-9.
[29]孟怡,徐亚同.制药废水硝化-反硝化除氮研究[J].化工环保,1999,19(4):204-207.
[30] Fux C,Bochlcr M, HuScr P. Biological treatment of ammonium-rich wastewater by partial nitritation and subsequent anaerobic ammonium oxidation in a pilot plant[J]. Bio-technol,2002,(99):295-306.
[31] Van U Dongcn,Jcttcn M S M,Van Loosdrccht M C M. The SHARON -ANAMMOX process for treatment of ammonium rich wastewater[J]. Water Science and Technology,2001,44(1):153-160.
[32] Straous M. Ammonia removal from concentrated waste streams with the ANAMMOX process in different reac tor configurations[J]. Water Res., 1997, 31:1955-1962.
[33] M.S.M.Jetten,Strous M. The anaerobic oxidation of ammonium[J]. FEMS Microbiol. Rev.,1999,22:421-437.
[34]郑平,冯孝善,M.S.M.Jetten. ANAMMOX流化床反应器性能的研究[J].环境科学学报,1998,18(4):367-372.
[35]王建龙.生物脱氮新工艺及其技术原理[J],中国给水排水,2000,16(2):25-28.
[36]胡勇有,雒怀庆,陈柱.厌氧氨氧化菌的培养与驯化[J].华南理工大学学报,2002,30(11):160-163.