Saboda canjin wasu dalilai, ingancin sludge mai kunnawa ya zama haske, haɓakawa, kuma aikin daidaitawa ya lalace, ƙimar SVI ta ci gaba da tashi, kuma ba za a iya aiwatar da rabuwar ruwan laka na al'ada ba a cikin tanki na biyu na sedimentation.Matsayin sludge na tanki na biyu yana ci gaba da tashi, kuma a ƙarshe sludge ɗin ya ɓace, kuma ƙaddamarwar MLSS a cikin tanki na iska ya ragu sosai, don haka lalata sludge a cikin aikin al'ada.Ana kiran wannan sabon abu sludge bulking.sludge bulking wani sabon abu ne na ban mamaki a cikin tsarin aiwatar da sludge mai kunnawa.
Kunna aikin sludge yanzu ana amfani da ko'ina a cikin jiyya na ruwa.Wannan hanya ta samu sakamako mai kyau wajen magance nau'o'in datti na kwayoyin halitta irin su najasa na birni, yin takarda da rina ruwan sha, samar da ruwan sha da ruwan sinadarai.Duk da haka, akwai matsala na kowa a cikin maganin sludge da aka kunna, wato, sludge yana da sauƙi don kumbura yayin aiki.sludge bulking yafi raba zuwa filamentous kwayoyin type sludge bulking da wadanda ba filamentous kwayoyin type sludge bulking, kuma akwai da yawa dalilai na samuwar.Cutar da sludge bulking yana da matukar tsanani, da zarar ya faru, yana da wuya a sarrafa, kuma lokacin dawowa yana da tsawo.Idan ba a dauki matakan kulawa a cikin lokaci ba, asarar sludge na iya faruwa, wanda ya lalata aikin tanki mai iska, wanda ya haifar da rushewar tsarin jiyya duka.
Ƙara sinadarin calcium chloride zai iya hana ci gaban ƙwayoyin cuta na filamentous, wanda ke haifar da samuwar ƙwayoyin ƙwayoyin cuta, da kuma inganta aikin sludge.Calcium chloride zai bazu kuma ya samar da ions chloride bayan narkar da cikin ruwa.Chloride ions suna da sterilization da disinfection sakamako a cikin ruwa, wanda zai iya kashe wani ɓangare na filamentous kwayoyin cuta da kuma hana sludge kumburi lalacewa ta hanyar filamentous kwayoyin.Bayan dakatar da ƙari na chlorine, ions chloride kuma na iya zama a cikin ruwa na dogon lokaci, kuma ƙwayoyin filamentous ba su girma da yawa a cikin gajeren lokaci, kuma ƙananan ƙwayoyin cuta na iya haifar da kullun na yau da kullum, wanda kuma ya nuna cewa ƙari. Calcium chloride zai iya hana ci gaban kwayoyin filamentous kuma yana da tasiri mai kyau akan magance kumburin sludge.
Ƙara alli chloride zai iya sarrafa sludge kumburi da sauri da kuma yadda ya kamata, kuma SVI na sludge mai kunnawa za'a iya ragewa da sauri.SVI ya ragu daga 309.5mL/g zuwa 67.1mL/g bayan ƙara calcium chloride.Ba tare da ƙara calcium chloride ba, SVI na sludge mai kunnawa kuma za'a iya rage shi ta hanyar canza yanayin aiki, amma raguwar raguwa yana da hankali.Ƙara calcium chloride ba shi da wani tasiri a fili akan ƙimar cirewar COD, kuma adadin cire COD na ƙara calcium chloride shine kawai 2% ƙasa da na rashin ƙara calcium chloride.
Lokacin aikawa: Janairu-11-2024
