1. Izici zendle kamasipala
Ukuphathwa kwendle kukamasipala ngokuvamile kubhekisa ezitshalweni zokuhlanza indle zikamasipala, ukuphathwa kwendle emfuleni, izitshalo zokuhlanza indle ezikhungweni zomphakathi ezinkulu, njll. Indle iboniswa izinguquko ezinkulu kwikhwalithi yamanzi, i-COD ephezulu (ukufunwa komoya-mpilo), i-SS (okuqinile kumisiwe ukugxila okuqinile), kanye nokwelashwa okunzima. Izinqubo zokwelashwa kwendle ngokuvamile zifaka amathangi okumbiwa kwenhlabathi okuyisisekelo, amathangi e-grit sedimentation, amathangi we-sedimentation wesibili, amathangi we-biochemical (okunomsoco omuhle, amathangi we-anaerobic), amathangi e-sludge thickening, sludge dewatering filter presses, njll. ama-microorganisms, njll., noma yimuphi umkhiqizo owenzelwe ukwelapha amanzi abuyisiwe kumele ukwazi ukubekezelela lokhu kwehluka futhi kuqukethe ukuminyana okuphezulu kwezinto eziphilayo kanye nezinto eziphilayo.
2. Imithi ekhethelwe ukwelashwa kwendle kamasipala
Lapho sisebenzisana nendle kamasipala, imvamisa sikhetha i- polyacrylamide flocculant , ngokuvamile i- cationic polyacrylamide okungcono kokukhokhiswa phakathi kuka-40-50. Kwesinye isikhathi, i-anionic polyacrylamide isetshenziswa ethangini eliyisisekelo noma lesibili le-sedimentation ukusheshisa ukudilika kokuqina okumisiwe; ngenkathi imishini yokuhlunga edonsa amanzi ikakhulukazi imishini yokuhlunga ibhande, futhi ama-cations aqinile kakhulu asetshenziswa kakhulu. I-Polyacrylamide flocculant, isisindo samangqamuzana ayizigidi eziyi-9 -12, kanti inani lokuhambisa liyi-1-2 ‰.
3. izici ze-cationic flocculant
ICationic polyacrylamide iyi-polymer entsha, esezingeni eliphakeme, esebenza kahle kakhulu. Kulula ukuncibilika emanzini, kunesilinganiso sedimentation esheshayo, futhi kunomphumela omuhle wokuhlanzwa kwamanzi. Ayinazo izinto eziyingozi njenge-aluminium, i-chlorine kanye ne-ayoni esindayo, futhi akukho ukudluliswa kwesigaba samanzi kwezinsimbi. Akuyona into enobuthi, ayinabungozi, iphephile futhi inokwethenjelwa. ICationic polyacrylamide flocculant ingahlanza kahle indle kamasipala, njengokukhishwa kobuxhakaxhaka, ukukhipha amakholomu, ukukhipha amanzi emzimbeni, ukomisa amanzi, ukuvala inzalo, ukukhipha amakholomu, ukususwa kwe-algae, ukususwa kwe-COD, i-BOD kanye ne-ayoni esindayo emanzini. Ngenxa yokuqukethwe okuphezulu kwento ephilayo endle kamasipala, uhlobo lwe-cationic luvame ukusetshenziswa. Ngemuva kokusetshenziswa, inani le-pH kanye ne-alkalinity ephelele yamanzi aluhlaza kunebanga lokushintsha okuncane, futhi ukubola kwemishini yokwelashwa nakho kuncane; imvamisa inani le-pH lomzimba wamanzi lingu-4.0-11.0, ukuze umphumela ufinyelele kunani le-pH elingu-6.0-9.0.
4. Isikali
Uma usebenzisa i-cationic polyacrylamide ukwelapha indle kamasipala, ngomthamo ophansi kakhulu, imiphumela emihle ingatholakala, futhi izindleko ziphansi, futhi izindleko zokwelashwa kwazo zingancishiswa ngo-20-50%. Umthamo we-ejenti ethile uncike kohlobo lwamanzi aluhlaza, futhi umthamo wehlukile ezimweni ezihlukile. Uma ufuna ukubala isilinganiso esinembe kakhudlwana, udinga ukwenza ucwaningo lwe-beaker olususelwa kusampula yamanzi ethathwe kusayithi ukuthola izimo nokusetshenziswa. Ngoba izinga lamanzi endle kamasipala lishintsha kakhulu, kwesinye isikhathi kusetshenziswa uhlobo olulodwa noma ezimbili zamakhemikhali ngokuhlangana. Lokhu kuya ngesimo sangempela ukuthola ukusetshenziswa kwamakhemikhali. Ngaphansi kwezimo ezijwayelekile, sizokhetha i-cationic polyacrylamide yokwelashwa.
Isikhathi Iposi: Jun-24-2021