BOD (Biochemical Oxygen Demand), bisa ga daidaitaccen fassarar ƙasa, BOD yana nufin biochemical.
Bukatar iskar oxygen tana nufin narkar da iskar oxygen da ƙananan ƙwayoyin cuta ke cinyewa a cikin tsarin sinadarai na sinadarai na lalata wasu abubuwa masu oxidizable a cikin ruwa ƙarƙashin ƙayyadaddun yanayi.
Tasirin BOD: Najasa a cikin gida da ruwan sharar masana'antu sun ƙunshi adadi mai yawa na mahadi iri-iri. Lokacin da wadannan sinadarai na halitta suka rube a cikin ruwa bayan sun gurbata ruwan, sai su cinye iskar oxygen da suka narkar da su da yawa, ta yadda hakan zai kawo cikas ga daidaiton iskar oxygen da ke cikin ruwa, da tabarbarewar ingancin ruwa, da kuma haddasa mutuwar kifaye da sauran halittun cikin ruwa saboda hypoxia. . Abubuwan da ke cikin kwayoyin halitta da ke cikin ruwa suna da wuyar ganewa ga kowane bangare. Mutane sukan yi amfani da iskar oxygen da kwayoyin halitta ke cinyewa a cikin ruwa a ƙarƙashin wasu yanayi don bayyana abubuwan da ke cikin ruwa a kaikaice, kuma buƙatun iskar oxygen na Biochemical yana ɗaya daga cikin irin waɗannan mahimman bayanai. Hakanan yana nuna haɓakar ƙwayoyin halitta a cikin ruwan datti.
Menene BOD5: (BOD5) yana nufin adadin iskar oxygen da aka cinye lokacin da aka sanya samfurin a cikin duhu a (20 ± 1) ℃ na kwanaki 5 ± 4 hours.
Microbial electrode shine firikwensin da ke haɗa fasahar ƙananan ƙwayoyin cuta tare da fasahar gano electrochemical. Ya ƙunshi narkar da narkar da iskar oxygen da kuma fim ɗin microbial wanda ba a iya motsi a manne da shi a saman membrane mai numfashi. Ka'idar amsawa ga abubuwan BOD shine cewa lokacin da aka saka shi a cikin ma'auni ba tare da abubuwan B0D ba a yanayin zafi akai-akai da narkar da iskar oxygen, saboda wasu ayyukan numfashi na ƙwayoyin cuta, narkar da ƙwayoyin oxygen a cikin substrate suna bazuwa cikin iskar oxygen ta hanyar. ƙwayar ƙwayar ƙwayar cuta a wani ƙayyadaddun ƙimar, kuma ƙananan lantarki na lantarki suna fitar da yanayin halin yanzu; Idan an ƙara abun BOD zuwa maganin ƙasa, ƙwayoyin abun zai yaɗu zuwa cikin ƙwayar ƙwayar cuta tare da kwayoyin oxygen. Domin microorganism a cikin membrane zai Anabolism da BOD abu da kuma cinye oxygen, oxygen molecule shiga cikin oxygen electrode za a rage, wato, diffusion rate za a rage, da fitarwa halin yanzu na electrode za a rage, kuma zai fadi. zuwa sabon tsayayyen ƙima a cikin 'yan mintuna kaɗan. A cikin kewayon da ya dace na maida hankali na BOD, akwai dangantaka ta layi tsakanin raguwar fitarwar lantarki na yanzu da kuma maida hankali na BOD, yayin da akwai alaƙa mai ƙima tsakanin ƙaddamarwar BOD da ƙimar BOD. Sabili da haka, dangane da raguwa a halin yanzu, ana iya ƙayyade BOD na samfurin ruwa da aka gwada.
LH-BODK81 Halitta Sinadarai na oxygen bukatar BOD microbial firikwensin mai saurin gwadawa, idan aka kwatanta da hanyoyin auna BOD na gargajiya, wannan sabon nau'in firikwensin gani yana da fa'idodi da yawa. Da fari dai, hanyoyin auna BOD na gargajiya suna buƙatar dogon tsari na noma, yawanci suna ɗaukar kwanaki 5-7, yayin da sabbin na'urori masu auna firikwensin suna ɗaukar mintuna kaɗan kawai don kammala awo. Abu na biyu, hanyoyin auna al'ada suna buƙatar babban adadin reagents na sinadarai da kayan gilashi, yayin da sabbin na'urori masu auna firikwensin ba sa buƙatar kowane reagents ko kayan aiki, rage farashin gwaji da saka hannun jari. Bugu da ƙari, hanyoyin auna BOD na gargajiya suna da sauƙi ga yanayin muhalli kamar zafin jiki da haske, yayin da sababbin na'urori masu auna firikwensin zasu iya aunawa a wurare daban-daban kuma suna amsa da sauri ga canje-canje.
Sabili da haka, wannan sabon nau'in firikwensin gani yana da fa'idar aikace-aikace masu fa'ida. Baya ga yin amfani da shi a fagen kula da ingancin ruwa, ana kuma iya amfani da wannan firikwensin a fannoni daban-daban kamar abinci, magunguna, kare muhalli, da gano kwayoyin halitta a cikin koyarwar dakin gwaje-gwaje.
Lokacin aikawa: Juni-19-2023
