Microbial kurapwa kwetsvina ndeyekuisa huwandu hukuru hunobudirira hwehutachiona hwehutachiona mutsvina, iyo inokurudzira kukurumidza kuumbwa kweiyo yakaenzana ecosystem mumvura yemvura pachayo, umo mune kwete chete decomposers, vagadziri, uye vatengi.Izvo zvinosvibisa zvinogona kurapwa uye kushandiswa zvakanyanya, uye nekudaro macheni mazhinji echikafu anogona kuumbwa, achigadzira criss-crossing food web ecosystem.Iyo yakanaka uye yakagadzikana ecological balance system inogona kugadzwa kana huwandu hwakakodzera uye simba reshiyo zvikachengetwa pakati pemazinga etrophic.Kana imwe chiyero chetsvina ichipinda mune ino ecosystem, iyo organic inosvibisa mairi haina kungoshatiswa uye kucheneswa nemabhakitiriya uye fungi, asi zvigadzirwa zvekupedzisira zvekuora kwavo, mamwe macompounds, anoshandiswa secarbon sources, nitrogen masosi uye phosphorus masosi. uye simba rezuva rinoshandiswa sesimba rekutanga., kutora chikamu muhurongwa hwemetabolism muwebhu yechikafu, uye zvishoma nezvishoma kutama uye kushanduka kubva pakadzika trophic level kuenda kune yakakwira trophic level, uye pakupedzisira kushanduka kuita zvirimwa zvemumvura, hove, shrimp, mussels, hanzi, madhadha uye zvimwe zvigadzirwa zvehupenyu zvepamberi, uye kuburikidza nevanhu. enderera Tora uye uwedzere matanho ekuchengetedza iyo yakazara ecological chiyero chemuviri wemvura, kuwedzera kunaka uye chimiro chemvura, uye kuzadzisa chinangwa chekudzivirira nekudzora eutrophication yemuviri wemvura.
1. Microbial kurapwa kwetsvinakunyanya inobvisa organic pollutants (BOD, COD zvinhu) mu colloidal uye yakanyungudika mamiriro mutsvina, uye chiyero chekubvisa chinogona kusvika kupfuura 90%, kuitira kuti organic zvinosvibisa zvisangane neinobuda mwero.
(1) BOD (biochemical oxygen demand), kureva "biochemical oxygen demand" kana "biological oxygen demand", chiratidzo chisina kunanga chezviri mukati meorganic matter mumvura.Iyo inowanzo reva chikamu che nyore oxidizable organic zvinhu zviri mu1L yetsvina kana sampuli yemvura kuti iongororwe.Apo utachiona hunoita oxidize uye huchiiparadza, okisijeni yakanyungudutswa mumvura inopedzwa mumamirigiramu (iyo unit is mg/L).Mamiriro ekuyera eBOD anowanzo kutaurwa pa20 °C kwemazuva mashanu nehusiku, saka chiratidzo BOD5 chinowanzoshandiswa.
(2) COD (kemikari okisijeni inodiwa) ikemikari yeokisijeni inodiwa, inova chiratidzo chisina kunanga chezviri mukati memuviri wemvura.(chikamu chiri mg/L).Anowanzo shandiswa makemikari oxidants K2Cr2O7 kana KMnO4.Pakati pavo, K2Cr2O7 inowanzoshandiswa, uye COD yakayerwa inomiririrwa ne "COD Cr".
2. Kurapa kweMicrobial Sewage inogona kukamurwa kuita aerobic treatment system uye anaerobic treatment system maererano nemamiriro eokisijeni mukurapwa.
1. Aerobic treatment system
Mumamiriro ezvinhu e-aerobic, tupukanana tunoshambadza organic zvinhu mumhoteredzo, oxidize nekuiparadza kuita inorganic matter, kuchenesa tsvina, uye kusanganisa ma cell zvinhu panguva imwe chete.Mukuita kwekucheneswa kwetsvina, ma microorganisms aripo muchimiro cheakagadziriswa sludge uye izvo zvakakosha zvebiofilm.
Iyi nzira inzira yebhayoloji yekurapa ine biofilm semuviri mukuru wekucheneswa.Biofilm inonzi mucous membrane yakasungirirwa pamusoro pemutakuri uye inonyanya kuumbwa nebhakitiriya micelles.Basa reiyo biofilm rakafanana neiyo yakagadziriswa sludge mune yakagadziriswa sludge process, uye yayo microbial kuumbwa kwakafananawo.Nheyo huru yekucheneswa kwetsvina ndeye adsorption uye oxidative decomposition ye organic matter mutsvina ne biofilm yakanamirwa pamusoro pemutakuri.Zvinoenderana neakasiyana nzira dzekusangana pakati pepakati nemvura, iyo biofilm nzira inosanganisira biological turntable nzira uye shongwe yebiological sefa nzira.
Pasi peanoxic mamiriro, nzira yekushandisa anaerobic bacteria (kusanganisira facultative anaerobic bacteria) kuodza organic zvinosvibisa mutsvina inonziwo anaerobic digestion kana anaerobic fermentation.Nekuti chinovirisa chinoburitsa methane, inodaidzwa zvakare kuti methane fermentation.Iyi nzira haigone chete kubvisa kusvibiswa kwezvakatipoteredza, asiwo kukudziridza bio-energy, saka vanhu vanoteerera zvakanyanya.Anaerobic fermentation yetsvina inzvimbo yakaoma kwazvo, iyo inosanganisira akasiyana siyana anochinjanisa mabhakitiriya mapoka, rimwe nerimwe richida ma substrates akasiyana uye mamiriro, achigadzira yakaoma ecosystem.Kuvirisa kwemethane kunosanganisira matanho matatu: liquefaction stage, hydrogen production uye acetic acid production stage and methane production stage.
Kugadziriswa kwetsvina kunogona kukamurwa kuita yepuraimari, yechipiri uye yepamusoro kurapwa zvichienderana nehuwandu hwekurapa.
Kurapa kwekutanga: Kunonyanya kubvisa zvinosvibisa zvakamisikidzwa mutsvina, uye nzira zhinji dzekurapa dzemuviri dzinogona kungozadzisa zvinodiwa zvekurapa kwekutanga.Mushure mekutanga kurapwa kwetsvina, BOD inogona kazhinji kubviswa neinenge 30%, iyo isingaenderane neyakajairwa.Kurapa kwekutanga ndekwekufanogadziriswa kwekurapa kwechipiri.
Maitiro ekutanga ekurapa ndeekuti: tsvina yakasvibirira yakapfuura nepakati pegidhi yakaoma inosimudzwa nepombi yekusimudza tsvina - yakapfuura nepakati pegridi kana sesefa - yobva yapinda mukamuri yegrit - tsvina yakaparadzaniswa nejecha uye mvura inopinda mune yekutanga sedimentation. tangi, iri pamusoro ndeiyi: Primary processing (kureva kugadzirwa kwemuviri).Basa reiyo grit chamber ndeyekubvisa inorganic particles ine yakakura chaiyo gravity.Anowanzo shandiswa grit chambers advection grit chambers, aerated grit chambers, Dole grit chambers uye bell-type grit chambers.
Sekondari kurapwa: Inonyanya kubvisa colloidal uye yakanyungudutswa organic pollutants (BOD, COD zvinhu) mutsvina, uye chiyero chekubvisa chinogona kusvika kupfuura 90%, kuitira kuti iyo organic inosvibisa inogona kusangana neiyo yekuburitsa mwero.
Nzira yechipiri yekurapa ndeye: mvura inoyerera ichibva kune yekutanga sedimentation tank inopinda mubiological treatment equipment, kusanganisira activated sludge method uye biofilm nzira, (iyo reactor ye activated sludge method inosanganisira aeration tank, oxidation ditch, etc. Iyo biofilm nzira inosanganisira. Biological filter tank, biological turntable, biological contact oxidation method uye biological fluidized bed), mvura inoyerera ichibva mubiological treatment equipment inopinda musecond sedimentation tank, uye tsvina inobva musecond sedimentation tank inoraswa mushure mekuuraya utachiona kana kupinda mukurapa kwepamusoro.
Kurapa kwepamusoro: kunyanya kubata nerefractory organic matter, soluble inorganic matter senge nitrogen uye phosphorus inogona kutungamirira.
kune eutrophication yemuviri wemvura.Nzira dzinoshandiswa dzinosanganisira biological denitrification uye phosphorus kubvisa, coagulation sedimentation, jecha rate nzira, activated carbon adsorption nzira, ion exchange nzira uye electroosmosis kuongorora nzira.
Maitiro ekurapa epamusoro ndeaya anotevera: chikamu chedhaka mutangi rechipiri sedimentation chinodzoserwa kune yekutanga sedimentation tank kana biological treatment equipment, uye chikamu chesludge chinopinda mudhaka rekukora tangi, chobva chapinda mudhaka rekugaya tangi.Mushure mekudzikisa uye kuomesa michina, iyo sludge inozoshandiswa.
Kunyangwe ari mutengi mutsva kana mutengi wekare, tinotenda mukugadzirwa kwakakosha kweammonia inosvibisa mabhakitiriya ekurapa mvura muChina, kuwedzera kweiyo aerobic bacteria agent uye hukama hwakavimbika, tinogamuchira vatengi vatsva nevakuru kuti vatibate nenharembozha. kana kutumira email kuti utibvunze kuti timise hukama hwenguva refu hwebhizinesi uye kubudirira kwakagovaniswa.
Wastewater Chemical TreatmentChina Bacteria Special Design, Bacterial Water Treatment Agent, sevashandi vakadzidza, vane ruzivo uye vane simba, tanga tichitarisira zvinhu zvose zvekutsvakurudza, kugadzira, kugadzira, kutengesa uye kugovera.Nekutsvagisa nekugadzira matekinoroji matsva, isu hatiteveri chete asi tinotungamira indasitiri yemafashoni.Isu tinoteerera zvakanyatsonaka kune vatengi mhinduro uye tinopa kutaurirana nekukurumidza.Iwe unobva wanzwa hunyanzvi hwedu uye basa rakateerera.
Nguva yekutumira: Jun-11-2022