Xu Darong 1,2, Zhang Zhongzhi 2, Jiang Hao 1, Ma Zhigang 1
(1. Beijing Guoneng Zhongdian ike nchekwa na gburugburu ebe obibi Technology Co., Ltd., Beijing 100022; 2. China University of Petroleum (Beijing), Beijing 102249)
Nchịkọta: n'ọhịa nke ọgwụgwọ mmiri mkpofu na ihe mkpofu mkpofu, PAC na PAM ejirila ya mee ihe dị ka ihe enyemaka flocculants na coagulant. Akwụkwọ a na-ewebata mmetụta ngwa na ọnọdụ nyocha nke pac-pam n'ọhịa dị iche iche, na-akọwa nkenke nghọta na echiche nke ndị nchọpụta dị iche iche na njikọta nke pac-pam, ma na-enyocha nke ọma ihe achọrọ maka ngwa na ụkpụrụ nke pac-pam n'okpuru ọnọdụ nnwale na ọnọdụ ubi dị iche iche. Dịka ọdịnaya na nyocha nke nyocha ahụ si dị, akwụkwọ a na-egosi ụkpụrụ dị n'ime nke pac-pam etinyere na ọnọdụ ọrụ dị iche iche, ma na-egosi na njikọta nke PAC na PAM nwekwara ntụpọ, a ga-ekpebikwa ụdị ngwa ya na dose dịka ọnọdụ ahụ si dị.
Isi okwu: polyaluminium chloride; Polyacrylamide; Ọgwụgwọ mmiri; Nchacha
0 Okwu Mmalite
N'ọrụ mmepụta ihe, ojiji nke polyaluminium chloride (PAC) na polyacrylamide (PAM) iji gwọọ mmiri mkpofu na ihe mkpofu ndị yiri ya emeela ka usoro teknụzụ too eto, mana usoro ọrụ ya edoghị anya, oke dose maka ọnọdụ ọrụ dị iche iche n'ọhịa dị iche iche dịkwa iche.
Akwụkwọ a na-enyocha ọtụtụ akwụkwọ dị mkpa n'ụlọ na mba ofesi nke ọma, na-achịkọta usoro njikọta nke PAC na PAC, ma na-eme ọnụọgụgụ zuru oke na nkwubi okwu dị iche iche gbasara ihe atụ yana mmetụta PAC na PAM nwere n'ọtụtụ ụlọ ọrụ dị iche iche, nke nwere ihe nduzi maka nyocha ndị ọzọ n'ọhịa ndị metụtara ya.
1. Ihe atụ nyocha ngwa ụlọ nke pac-pam
A na-eji mmetụta njikọta nke PAC na PAM eme ihe n'akụkụ niile nke ndụ, mana usoro ọgwụgwọ na usoro nkwado dị iche iche maka ọnọdụ ọrụ na gburugburu ọgwụgwọ dị iche iche.
1.1 nsị mmiri ụlọ na nsị obodo
Zhao Yueyang (2013) na ndị ọzọ nwalere mmetụta coagulation nke PAM dị ka ihe enyemaka coagulant nye PAC na PAFC site na iji usoro nnwale ime ụlọ. Nnwale ahụ chọpụtara na mmetụta coagulation nke PAC mgbe coagulation PAM gasịrị mụbara nke ukwuu.
Wang Mutong (2010) na ndị ọzọ mụrụ mmetụta ọgwụgwọ nke PAC + PA na nsị mmiri n'ime obodo, ma mụọ arụmọrụ mwepụ COD na ihe ngosi ndị ọzọ site na nnwale orthogonal.
Lin yingzi (2014) na ndị otu ya mụrụ banyere mmetụta coagulation nke PAC na PAM nwere na algae n'ime ụlọ ọrụ mmiri. Yang Hongmei (2017) na ndị otu ya mụrụ banyere mmetụta ọgwụgwọ nke ojiji ejikọtara ọnụ na mmiri mkpofu kimchi, wee chee na uru pH kacha mma bụ 6.
Fu peiqian (2008) na ndị otu ya mụrụ mmetụta nke flocculant mejupụtara ejiri mee ihe iji mee ka mmiri dịghachi mma. Site n'ịtụle mmetụta mwepụ nke ihe ndị na-adịghị ọcha dị ka turbidity, TP, COD na phosphate na ihe nlele mmiri, achọpụtara na flocculant mejupụtara nwere mmetụta dị mma na mwepụ nke ihe ndị na-adịghị ọcha niile.
Cao Longtian (2012) na ndị ọzọ nakweere usoro nke flocculation composite iji dozie nsogbu nke ọsọ mmeghachi omume nwayọ, flocs ọkụ na ihe siri ike imikpu na usoro ọgwụgwọ mmiri na Northeast China n'ihi obere okpomọkụ n'oge oyi.
Liu Hao (2015) na ndị otu ya mụrụ mmetụta ọgwụgwọ nke flocculant mejupụtara na nkwụsịtụ siri ike nke sedimentation na mbelata turbidity na nsị mmiri n'ụlọ, ma chọpụta na itinye ụfọdụ PAM flocculate mgbe ị na-agbakwunye PAM na PAC nwere ike ịkwalite mmetụta ọgwụgwọ ikpeazụ.
1.2 Ịbipụta na ịcha mmiri mkpofu na ime akwụkwọ
Zhang Lanhe (2015) na ndị otu ya mụrụ mmetụta nhazi nke chitosan (CTS) na coagulant n'ọgwụgwọ mmiri mkpofu nke ime akwụkwọ, wee chọpụta na ọ ka mma itinye chitosan.
Ọnụego mwepụ nke COD na turbidity mụbara site na 13.2% na 5.9%.
Xie Lin (2010) mụrụ mmetụta nke ọgwụgwọ PAC na PAM nke mmiri mkpofu eji eme akwụkwọ.
Liu Zhiqiang (2013) na ndị ọzọ jiri PAC na PAC composite flocculant nke aka ha tinyere ultrasonic iji gwọọ mbipụta na agba mmiri mkpofu. E kwubiri na mgbe uru pH dị n'etiti 11 na 13, etinyere PAC na mbụ ma kpalie ya maka nkeji 2, wee tinye PAC ma kpalie ya maka nkeji 3, mmetụta ọgwụgwọ kacha mma.
Zhou Danni (2016) na ndị ọzọ mụrụ mmetụta ọgwụgwọ nke PAC + PAM na nsị mmiri n'ụlọ, tụnyere mmetụta ọgwụgwọ nke ihe na-eme ka ihe dị ndụ na ọgwụ nje na-egbu nje, wee chọpụta na PAC + PAM ka mma karịa usoro ọgwụgwọ bayoloji na mmetụta mwepụ nke mmanụ, mana PAC + PAM ka mma karịa usoro ọgwụgwọ bayoloji na nsí mmiri.
Wang Zhizhi (2014) na ndị otu ya mụrụ usoro ọgwụgwọ nke ime akwụkwọ site na iji PAC + PAM coagulation dịka akụkụ nke usoro ahụ. Mgbe usoro ọgwụgwọ nke PAC bụ 250 mg / L, usoro ọgwụgwọ nke PAM bụ 0.7 mg / L, na uru pH fọrọ nke nta ka ọ bụrụ nke na-anọpụ iche, ọnụego mwepụ COD ruru 68%.
Zuo Weiyuan (2018) na ndị ọzọ mụrụ ma tụnyere mmetụta flocculation agwakọtara nke Fe3O4 / PAC / PAM. Nnwale ahụ na-egosi na mgbe oke nke atọ ahụ bụ 1:2:1, mmetụta ọgwụgwọ nke ibipụta na ịcha mmiri mkpofu kacha mma.
LV sining (2010) na ndị otu ya mụrụ mmetụta ọgwụgwọ nke ngwakọta PAC + PAM na mmiri mkpofu dị n'etiti. Nnyocha ahụ na-egosi na mmetụta flocculation nke ngwakọta kachasị mma na gburugburu acidic (pH 5). Usoro PAC bụ 1200 mg / L, usoro PAM bụ 120 mg / L, na ọnụego mwepụ nke cod karịrị 60%.
1.3 Mmiri mkpofu kemịkalụ kol na mmiri mkpofu nchacha
Yang Lei (2013) na ndị otu ya mụrụ mmetụta coagulation nke PAC + PAM na ọgwụgwọ mmiri mkpofu ụlọ ọrụ kol, tụnyere turbidity fọdụrụ n'okpuru oke dị iche iche, ma nye usoro nhazi nke PAM dịka turbidity mbụ dị iche iche si dị.
Fang Xiaoling (2014) na ndị ọzọ tụnyere mmetụta coagulation nke PAC + Chi na PAC + PAM na mmiri mkpofu ụlọ ọrụ mmepụta ihe. Ha kwubiri na PAC + Chi nwere mmetụta flocculation ka mma na arụmọrụ dị elu nke iwepụ COD. Nsonaazụ nnwale ahụ gosiri na oge kachasị mma bụ nkeji iri na uru pH kacha mma bụ 7.
Deng Lei (2017) na ndị otu ya mụrụ mmetụta nke PAC + PAM na mmiri mkpofu mmiri, ọnụego mwepụ COD ruru ihe karịrị 80%.
Wu Jinhua (2017) na ndị otu ya mụrụ ihe gbasara ọgwụgwọ mmiri mkpofu kol site na coagulation. PAC bụ 2 g / L ebe PAM bụ 1 mg / L. Nnwale ahụ gosiri na uru pH kacha mma bụ 8.
Guo Jinling (2009) na ndị otu ya mụrụ mmetụta ọgwụgwọ mmiri nke flocculation mejupụtara ma chee na mmetụta mwepụ ahụ kacha mma mgbe usoro PAC bụ 24 mg / L na PAM bụ 0.3 mg / L.
Lin Lu (2015) na ndị otu ya mụrụ mmetụta nke ngwakọta pac-pam na mmanụ emulsified nwere mmiri mkpofu n'ọnọdụ dị iche iche, ma tụnyere mmetụta nke otu flocculant. Usoro ikpeazụ bụ: PAC 30 mg / L, pam6 mg / L, okpomọkụ gburugburu 40 ℃, uru pH na-anọpụ iche na oge sedimentation maka ihe karịrị nkeji 30. N'okpuru ọnọdụ kacha mma, arụmọrụ mwepụ COD ruru ihe dị ka 85%.
Mmechi na aro abụọ
A na-eji njikọta nke polyaluminium chloride (PAC) na polyacrylamide (PAM) eme ihe n'ọtụtụ ebe ná ndụ mmadụ. O nwere nnukwu ike n'ihe gbasara ọgwụgwọ mmiri mkpofu na nsị, a kwesịkwara inyocha uru ya n'ụlọ ọrụ mmepụta ihe.
Usoro njikọta nke PAC na PAM dabere na ezigbo ductility nke PAM macromolecular yinye, yana Al3 + na PAC na – O na PAM iji mepụta usoro netwọk kwụsiri ike karị. Nhazi netwọk ahụ nwere ike ikpuchi ihe ndị ọzọ dị ka ihe siri ike na mmiri mmanụ, yabụ ọ nwere mmetụta ọgwụgwọ dị mma maka mmiri mkpofu nwere ọtụtụ ihe na-adịghị ọcha, ọkachasị maka ịdị n'otu nke mmanụ na mmiri.
N'otu oge ahụ, njikọta nke PAC na PAM nwekwara ntụpọ. Mmiri dị n'ime flocculate ahụ dị elu, nhazi ime ya kwụsiri ike na-eduga n'ọchịchọ dị elu maka ọgwụgwọ nke abụọ. Ya mere, mmepe PAC na PAM ka na-eche ihe isi ike na ihe ịma aka ihu.
Oge ozi: Ọktoba-09-2021