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Ukusetshenziswa kwe-membrane bioreactor ekwelashweni kokukhucululwa kwendle esibhedlela

Isikhathi: 2020-04-16 Hits: 39

1. Umgomo wokusebenza we-membrane bioreactor

 

Inqubo ye-membrane bioreactor ikakhulukazi isho ubuchwepheshe bokwelashwa kwamanzi amdaka ngokuhlanganiswa kwe-biotechnology nobuchwepheshe bokuhlukanisa ulwelwesi. Phakathi kwazo, imishini yokuhlukanisa ulwelwesi ingavimba izinto ezi-macromolecular organic futhi isebenze i-sludge ethangini lokuphendula le-biochemical, futhi ilondoloze ithangi lokulinganisa lesibili, ukuze kwandiswe ukwanda kwe-sludge okusebenzayo, nesikhathi sokuhlala se-sludge nesikhathi sokugcinwa kwe-hydraulic ingalawulwa Futhi, izinto ezinzima kakhulu ku-reactionor zizonciphisa futhi zisabele. Ngakho-ke, uma kuqhathaniswa nendlela yendabuko yokwelashwa okujwayelekile, ubuchwepheshe bokuhlukanisa ulwelwesi olusetshenzisiwe enkambisweni ye-membrane bioreactor bungawuqinisa umsebenzi we-bioreactor, ongomunye wobuchwepheshe obusha nobusetshenziswa kabanzi ekwelapheni kwamanzi amdaka.


 

2. Ukuhlaziywa kwesicelo se-MBR ekwelashweni kokukhucululwa kwendle esibhedlela

 

2.1 Ukusebenziseka kokusetshenziswa kwe-membrane bioreactor ekwelashweni kokukhucululwa kwendle esibhedlela

 

Ngokusho kocwaningo olwenziwa ochwepheshe abaningi kanye nabafundile, ama-membrane bioreactors angadicilela phansi izinto eziphilayo emgodini wokukhuculula indle futhi angasebenzi ama-pathogenic microorganisms, bese ehlunga izinto ezingamanzi ezinamanzi ezinamanzi ezinamanzi ezinamanzi amancane kanye nezinto ezimisiwe nge-membrane, ukuze ukungcola okungcolile kungalawulwa ngaphansi kwe-0.2NTU. Izinzuzo zalo zibonakaliswa kakhulu ekunciphiseni kokukhipha i-aerosol kanye nesizukulwane se-sludge, ukusetshenziswa okulandelayo kwe-disinitness unit disinfectant kuncishisiwe, futhi into emisiwe emanzini nayo izoncishiswa, ngakho-ke izobamba iqhaza elibalulekile ekwelashweni kwendle okwenziwa esibhedlela.

 

2.2 Umphumela wokusebenza kwe-membrane bioreactor ekwelashweni kokukhucululwa kwendle esibhedlela

 

Ukusetshenziswa kwe-membrane bioreactor kungasusa ngaphezu kwe-90% ye-ammonia nitrogen emanzini, futhi kunezinzuzo ezinhle ekuphikisweni komthwalo wethonya. Ngokuvamile, lapho izimo zokusebenza ziba nzima ngokwengeziwe, i-MBR ikhombisa amandla amakhulu okususa into esebenzayo kunendlela ye-sludge esetshenzisiwe, futhi ikhwalithi esebenza kahle ilungile futhi iqinile, ukuze isikhathi se-sludge nesikhathi sokugcinwa kwe-hydraulic sehlukaniswe ngokuphelele. Ngaphezu kwalokho, ngesikhathi sokuhlunga kwe-sludge elixubekile le-ketshezi, usayizi we-pore we-membrane uyancishiswa ngenxa yokwakheka kwesendlalelo sesigaba se-biological phase sediment ngaphansi kwesenzo sobuso be-membrane.Ukusetshenziswa kwenqubo ye-MBR kungabamba ngokuphumelelayo ama-pathogenic microorganisms, ngakho-ke sizinzile ekususeni amagciwane. Iphinde yenzele ukushiyeka kwenqubo yendabuko yokugomela ama-chlorination.

 

Ngokuya kokungathatheli okulandelayo, uma kuqhathaniswa nenqubo eyenziwe nge-sludge, inqubo ye-MBR nayo ingagcina ama-disinfectants amaningi, futhi inhloso yokufaka kungabonakali ingafinyelelwa esikhathini esifushane sokuxhumana, ngakho-ke ukuncishiswa kokutshalwa kwezimali kanye nemishini yokuthwala Indawo yokumboza futhi ukunciphisa izindleko ezihambisana nenqubo yokubulala amagciwane kubaluleke kakhulu. Ngokubhekela ekunciphiseni izingozi zemikhiqizo yokuhlaselwa magciwane, i-MBR ingaqinisekisa ukuthi ukukhiqizwa kwama-hydrocarbon aqhakazile kuyancishiswa. Uma i-chlorine eyinsa emanzini isiphelile, okuqukethwe ama-hydrocarbon aqhakazile ngeke kusashintsha.

 

Ngaphezu kwalokho, ukuqoqwa kwama-hydrocarbons aqhakazile, i-monobromodichloromethane, i-chloroform, njll. Kuzoncishiswa, okuzobe kunciphisa ukulimala okungapheli nokungaba khona emvelweni nasempilweni yomuntu. Ngakho-ke, ukusetshenziswa kwenqubo ye-MBR ngeke kwehlise inani lesibulala magciwane kuphela, kepha futhi kunganciphisa umthelela wokungatheleleki kwemikhiqizo ngemikhiqizo yezempilo yabantu kanye nemvelo yezemvelo, futhi kungasetshenziswa ngokuphelele ekwelashweni kokukhucululwa kwendle esibhedlela.

 

In the application of hospital sewage treatment, the MBR process should take into account the actual characteristics and conditions of the hospital's sewage treatment, and at the same time it is necessary to correctly grasp its working principle to fully remove sewage pollutants, save disinfectant, and reduce the cost of disinfection process. The advantages of reducing disinfectant residues and disinfection by-products are brought into play. Only in this way can it bring more benefits to human health and ecological environment, and also promote the health and sustainable development of the hospital.