Codsiga ORP ee daaweynta bulaacada

Maxay ORP u taagan tahay daawaynta bulaacadaha?
ORP waxay u taagan tahay dib-u-habaynta awoodda daaweynta bulaacada. ORP waxaa loo isticmaalaa in lagu muujiyo sifooyinka dib u habeynta macro ee dhammaan walxaha ku jira xal aqueous. Markasta oo ay sareeyso awoodda dib-u-dhaqaajinta, ayaa sii xoogeysata hantida oksaydheynta, iyo hoos u dhigida awoodda dib-u-dhiska, way sii xoogaysanaysaa hantida yaraynta. Jir-biyoodka, inta badan waxa jira awoodo dib-u-habayn oo badan, samaynta nidaam isku-dhafan oo adag. Awoodeeda dib-u-doxdu waa natiijada guud ee falcelinta dib-u-celinta ee u dhaxaysa walxo oksaydhiyeyaal badan iyo yaraynta walxaha.
Inkasta oo ORP aan loo isticmaali karin tilmaame muujinta fiirsashada walxaha oksaydhaynta qaarkood iyo yaraynta walaxda, waxay caawisaa in la fahmo sifooyinka korantada ee jidhka biyaha iyo falanqaynta sifooyinka jidhka biyaha. Waa tilmaame dhammaystiran.
Codsiga ORP ee daawaynta bullaacadaha Waxa jira ion doorsoomayaal badan iyo ogsijiin milmay nidaamka bulaacadaha, taas oo ah, awoodo badan oo dib u habeyn ah. Iyada oo loo marayo qalabka lagu ogaanayo ORP, awoodda dib-u-celinta ee bullaacadaha ayaa lagu ogaan karaa waqti aad u yar, taas oo si weyn u gaabin karta habka ogaanshaha iyo waqtiga iyo hagaajinta waxtarka shaqada.
Awoodda dib-u-dhaqaajinta ee ay u baahan yihiin microorganisms way ka duwan tahay marxalad kasta oo daaweynta bulaacada ah. Guud ahaan, sheyga aerobic-ka waxay kori karaan in ka badan +100mV, ugu wanaagsana waa +300～+400mV; Unugyada anaerobic ee macalimiin ah waxay sameeyaan neefsasho aerobic ka sarreeya +100mV iyo neefsiga anaerobic ka hooseeya +100mV; Bakteeriyada anaerobic ee waajibka ah waxay u baahan tahay -200～-250mV, oo ay ka mid yihiin methanogens anaerobic-ka waajibka ah waxay u baahan yihiin -300～-400mV, ugu fiicanna waa -330mV.
Bey'adda dib-u-dejinta caadiga ah ee nidaamka aerobic-ka fir-fircoon ee dhoobada waa inta u dhaxaysa +200～+600mV.
Istaraatiijiyadda xakamaynta ee daaweynta bayoolojiga aerobic, daaweynta anoxic bayooloji iyo daawaynta anaerobic, iyada oo la socodka iyo maaraynta ORP ee bulaacadaha, shaqaaluhu waxay si macmal ah u xakameyn karaan dhacdooyinka falcelinta noolaha. Iyadoo la bedelayo xaaladaha deegaanka ee hawlgalka habka, sida:
● Kordhinta mugga hawo-qaadista si loo kordhiyo xoogga ogsajiinta ee milmay
●Ku darida walxaha oksaydhaynta iyo tallaabooyin kale si loo kordhiyo awoodda dib-u-dhaqaajinta
●Yareeynta mugga hawo-qaadista si loo yareeyo xoogga ogsajiinta ee milmay
●Ku darida ilaha kaarboonka iyo yaraynta walxaha si loo yareeyo kartida dib u habaynta, taaso kor u qaadaysa ama ka hortagaysa falcelinta.
Sidaa darteed, maareeyayaashu waxay ORP u adeegsadaan xakamaynta xakamaynta daaweynta bayoolojiga aerobic, daawaynta bayooloji ee anoksiga iyo daawaynta bayoolojiga anaerobic si loo gaadho saamaynta daawaynta ka sii wanaagsan.
Daaweynta noolaha hawada:
ORP waxay xiriir wanaagsan la leedahay ka saarista COD iyo nitrification. Iyadoo la xakameynayo mugga hawada hawada ee ORP, waqti aan ku filneyn ama xad dhaaf ah ayaa la iska ilaalin karaa si loo hubiyo tayada biyaha biyaha la daweeyay.
Daawaynta bayooloji ee anoksida: ORP iyo xoojinta nitrogen ee gobolka denitrification waxay leeyihiin xidhiidh gaar ah oo ku saabsan habka daaweynta noolaha ee anoksik, kaas oo loo isticmaali karo sifo lagu qiimeeyo in habka denitrification uu dhammaaday. Dhaqanka laxiriira wuxuu muujinayaa in habka diidmada, marka ka-soo-saarka ORP-ga uu ka yar yahay -5, fal-celintu waa mid qotodheer. Wasakhda waxaa ku jira Nitrate nitrogen, taas oo ka hortagi karta soo saarista walxo sun ah oo kala duwan oo waxyeello leh, sida hydrogen sulfide.
Daaweynta noolaha anaerobic: Inta lagu jiro falcelinta anaerobic, marka la yareeyo walxaha la soo saaro, qiimaha ORP wuu yaraan doonaa; Taa beddelkeeda, marka la yareeyo walxaha hoos u dhaca, qiimaha ORP wuu kordhi doonaa oo u muuqda inuu xasilloon yahay muddo cayiman.
Marka la soo koobo, daaweynta aerobic bayooloji ee dhirta lagu daweeyo bulaacada, ORP waxay leedahay xiriir wanaagsan oo la leh biodegradation ee COD iyo BOD, iyo ORP waxay leedahay xiriir wanaagsan oo leh falcelinta nitrification.
Daaweynta bayoolojiga anoxic, waxaa jira xiriir gaar ah oo u dhexeeya ORP iyo nitrate nitrogen-fiirinta ee gobolka denitrification inta lagu guda jiro daaweynta anoxic bayooloji, kaas oo loo isticmaali karo sida shuruudaha lagu qiimeeyo in habka denitrification uu dhamaaday. Xakamee saamaynta daaweynta ee qaybta habka saarista fosfooraska oo wanaaji saamaynta saarista fosfooraska. Ka saarista fosfooraska noolaha iyo ka saarista fosfooraska waxaa ka mid ah laba tillaabo:
Marka hore, marxaladda sii deynta fosfooraska ee xaaladaha anaerobic, bakteeriyada halsano waxay soo saartaa asiidh dufan ah oo hoos yimaada xaaladda ORP ee -100 ilaa -225mV. Asiidhada dufanka leh waxaa nuugta bakteeriyada polyphosphate iyo fosfooraska ayaa lagu sii daayaa jirka biyaha isku mar.
Marka labaad, barkadda aerobic-ka, bakteeriyada polyphosphate waxay bilaabataa inay hoos u dhigto asiidhyada dufanka leh ee lagu nuugay marxaladdii hore oo ay u beddesho ATP ADP si ay u hesho tamar. Kaydinta tamartani waxay u baahan tahay xajinta fosfooraska xad-dhaafka ah ee biyaha. Falcelinta fosfooraska adsorbing waxay u baahan tahay ORP ee barkadda aerobic in ay u dhexeyso +25 iyo +250mV si ay u dhacdo ka saarista fosfooraska noolaha.
Sidaa darteed, shaqaaluhu waxay xakameyn karaan saameynta daaweynta ee habka ka saarista fosfooraska iyada oo loo marayo ORP si loo hagaajiyo saameynta ka saarista fosfooraska.
Marka shaqaaluhu aysan dooneynin uruurinta nitrit-ka ama nitrit-ku-ururinta inay ku dhacdo habka nitrification, qiimaha ORP waa in lagu hayaa ka sarreeya +50mV. Sidoo kale, maareeyayaashu waxay ka hortagaan abuuritaanka urta (H2S) ee nidaamka bullaacadaha. Maareeyayaashu waa inay ku ilaaliyaan qiimaha ORP ee ka badan -50mV dhuumaha si looga hortago samaynta iyo falcelinta sulfides.
Hagaajinta wakhtiga hawo-qaadista iyo xoojinta hawo-mareenka habka si loo badbaadiyo tamarta loona yareeyo isticmaalka. Intaa waxaa dheer, shaqaaluhu waxay sidoo kale isticmaali karaan xiriirka muhiimka ah ee ka dhexeeya ORP iyo ogsijiinta kala diri ee biyaha si ay u hagaajiyaan wakhtiga hawada iyo xoojinta hawo-qaadista ee habka iyada oo loo marayo ORP, si loo gaaro badbaadinta tamarta iyo dhimista isticmaalka iyadoo la buuxinayo shuruudaha falcelinta noolaha.
Iyada oo loo marayo aaladda ogaanshaha ORP, shaqaaluhu waxay si dhakhso ah u fahmi karaan habka falcelinta nadiifinta wasakhda iyo heerka wasakhowga biyaha ee ku saleysan macluumaadka jawaab celinta waqtiga-dhabta ah, si ay u ogaadaan maaraynta la safeeyey ee isku xirka daaweynta wasakhda iyo maaraynta hufan ee tayada deegaanka biyaha.
Daawaynta biyaha wasakhda ah, falcelinno redox badan ayaa ku dhaca, iyo arrimaha saameeya ORP ee reactor kasta sidoo kale way ka duwan yihiin. Sidaa darteed, daaweynta wasakhda wasakhda, shaqaaluhu waxay sidoo kale u baahan yihiin inay sii bartaan xidhiidhka ka dhexeeya oxygen kala diri, pH, heerkulka, milixda iyo arrimaha kale ee biyaha iyo ORP iyadoo loo eegayo xaaladda dhabta ah ee warshadda bullaacadaha, iyo in la dhiso cabbirada xakamaynta ORP ee ku habboon qaybaha biyaha ee kala duwan. .