Mmiri mmiri sludge bụ akụkụ dị mkpa nke usoro ọgwụgwọ nsị. Ebumnuche ya bụ iji wepụ mmiri dị n'ime sludge nke ọma, nke mere na ọnụ ọgụgụ nke sludge dị ntakịrị, na ọnụ ahịa mkpofu na ohere ala na-ebelata. Na usoro a, nhọrọ nkeFlocculantbụ isi, yana PolyDADMAC, dị ka ihe na-arụ ọrụ nke ọmaCationic polymer flocculant, na-arụ ọrụ dị mkpa na-arịwanye elu.
Mbụ, anyị kwesịrị ịghọta ihe mejupụtara na Njirimara nke sludge. Sludge bụ isi sedimenti siri ike na-emepụta n'oge ọgwụgwọ nsị. O nwere ihe ndị dị mgbagwoju anya dị ka irighiri ihe ndị dị ndụ, otu microbial, ụmụ irighiri ihe na colloid. A na-ebunye ihe ndị a kwụsịrị na sludge na-ezighị ezi ma na-atụgharị ibe ha, ebe mmiri na-ejupụta n'etiti ihe ndị a kwụsịrị, ya mere, mmiri mbụ nke sludge nwere ike iru 95%. Ya mere, otú e si arụ ọrụ nke ọma sludge dewatering aghọwo ihe dị mkpa na ubi nke nsị ọgwụgwọ.
N'ime usoro mmiri mmiri sludge.Flocculant maka sludge dewateringbụ ihe dị mkpa na-emetụta. The flocculant na-achịkọta ụmụ irighiri ihe ndị dị na sludge n'ime ihe ndị buru ibu site na nkwụsị eletriki, mgbasa ozi mgbasa ozi, wdg, na-eme ka sedimentation ya na mmiri gwụ ya ngwa ngwa. Dị ka ngwaahịa kemịkal eji eme ihe n'ụzọ pụrụ iche na ọgwụgwọ mmiri na-adịghị na sludge akpịrị ịkpọ nkụ, PolyDADMAC na-arụ ọrụ nke ọma na akpịrị ịkpọ nkụ n'ihi usoro mkpụrụ ndụ ya pụrụ iche yana njupụta ụgwọ.
Ọdịdị molekụla nke PolyDADMAC na-enye ya njupụta ụgwọ dị elu yana njirimara mgbasa ozi mara mma. N'oge sludge akpịrị ịkpọ nkụ usoro, PolyDADMAC nwere ike ngwa ngwa adsorb n'elu nke sludge ahụ, belata ihe na-asọ oyi ike n'etiti ahụ site na eletriki neutralization, na-akwalite guzobe nke ibu flocs n'etiti ahụ. N'otu oge ahụ, molekụla agbụ nke PolyDADMAC nwekwara ike na-etolite ihe dị irè netwọk Ọdịdị, ọnyà ọtụtụ sludge ahụ ọnụ, squeezing mmiri si n'etiti sludge ahụ, na-akpụ clumps ndị dị mfe nkụnye mmiri, nke mere na mmiri olu nwere ike belata na 60-80% ma ọ bụ ọbụna ala, na olu nwere ike belata site 75%.
E jiri ya tụnyere flocculants inorganic ọdịnala, PolyDADMAC nwere ịdị arọ molekụla dị elu yana njupụta na-akwụ ụgwọ, na-enye ya ike ịkwagharị ike. Na mgbakwunye,PolyDADMACnwere arụmọrụ mgbasa nke ọma, dị mfe iji, ọ naghị emepụta mmetọ nke abụọ. PD n'onwe ya adịghị emepụta sedimentation dị ka alum, n'ihi ya, ego nke ọzọ sludge nwere ike belata. Ndị a uru na-eme ka PolyDADMAC nwere sara mbara ngwa atụmanya na ubi nke sludge dewatering.
Ọdịdị molekụla nke PolyDADMAC na-enye ya njupụta ụgwọ dị elu yana njirimara mgbasa ozi mara mma. Otutu cationic dị iche iche na yinye molekụla ya nwere ike imeghachi omume na otu anionic dị n'elu irighiri sludge iji mepụta njikọ ion kwụsiri ike, na-ebute mgbasa ozi siri ike. Mgbasa ozi a abụghị naanị na-enyere aka ibelata ihe na-asọ oyi n'etiti ụmụ irighiri ihe, kamakwa ọ na-enyere aka ịmepụta flocs buru ibu.
Na mgbakwunye na ihe owuwu molekụla na njirimara ụgwọ nke PolyDADMAC, itinye uche ya na usoro onunu ya bụkwa ihe dị mkpa na-emetụta mmetụta akpịrị ịkpọ nkụ sludge. N'ime mpaghara ụfọdụ, ka ntinye nke PolyDADMAC na-abawanye ma ọ bụ na-abawanye usoro onunu ogwu, enwere ike imeziwanye arụmọrụ sludge mmiri. Otú ọ dị, oke itinye uche ma ọ bụ usoro onunu ogwu nwere ike iduga mmetụta dị iche, na-ebute nchebe colloid, nke na-ebelata mmetụta akpịrị ịkpọ nkụ. Ya mere, n'ime ngwa bara uru, ọ dị mkpa ka eme nnwale na njikarịcha dị ka usoro ọgwụgwọ nsị mmiri siri dị na akụrụngwa sludge siri dị, iji chọpụta ntinye na usoro ọgwụgwọ PolyDADMAC kacha mma.
Oge nzipu: Sep-26-2024