Qhov teeb meem dej Yancheng tom qab xiav-ntsuab algae tshwm sim hauv Taihu Lake tau rov ua suab nrov rau kev tiv thaiv ib puag ncig. Tam sim no, qhov ua rau muaj kuab paug tau pib pom. Cov nroj tsuag tshuaj me me tau tawg nyob ib ncig ntawm cov dej uas muaj 300,000 tus pej xeem nyob. Cov dej khib nyiab pov tseg los ntawm lawv tau ua phem rau cov dej haus. Yog tias nws tseem ceeb los daws qhov teeb meem dej paug loj hauv kev lag luam chemical, cov neeg sau xov xwm tsis ntev los no tau kawm tias cov tuam txhab kho dej siv tshuaj kho cov dej khib nyiab thiab ntau yam dej kho tau ntsib kev muag khoom. Raws li tus neeg sau xov xwm qhov kev tshawb nrhiav, muaj qhov xwm txheej tsis khoom ntawm qhov nkag ntawm Henan Huaquan Tap Water Materials General Factory. Nws tau nkag siab tias vim yog kev txiav txim tas mus li, tam sim no Gongyi City's Fuyuan Water Purification Materials Co., Ltd., Songxin Filter Material Industry Co., Ltd., Hongfa Net Dej kho cov tuam txhab xws li Cov Khoom Siv Dej Co., Ltd. thiab Xinhuayu Dej Purification Agent Factory uas tsim cov dej lim dej, cov pa roj carbon activated, thiab papermaking flocculants ua haujlwm ntawm lub peev xwm. Cia tus editor coj koj mus rau tus neeg sawv cev kho dej thiab kawm txog rab ntaj ci ntsa iab no rau kev kho cov dej muaj kuab lom.
Cov tshuaj kho dej hais txog cov tshuaj siv rau kev kho dej. Lawv tau siv dav hauv kev lag luam chemical, roj av, lub teeb kev lag luam, tshuaj niaj hnub, textiles, luam ntawv thiab dyeing, kev tsim kho, metallurgy, machinery, tshuaj thiab kev noj qab haus huv, tsheb thauj mus los, nroog thiab nyob deb nroog ib puag ncig tiv thaiv thiab lwm yam lag luam kom ua tiav kev txuag dej. thiab lub hom phiaj tiv thaiv dej paug.
Cov neeg ua haujlwm kho dej muaj xws li cov neeg ua haujlwm xav tau rau cov dej txias thiab boiler dej kho, seawater desalination, membrane sib cais, kev kho mob lom neeg, flocculation thiab ion pauv thiab lwm yam technologies. Xws li corrosion inhibitors, scale inhibitors thiab dispersants, bactericidal thiab algaecidal agents, flocculants, ion pauv resins, purifiers, ntxuav cov neeg ua haujlwm, pre-film agents, thiab lwm yam.
Raws li kev siv thiab kev kho mob sib txawv, cov hom kev kho dej tseem ceeb yog:
Rov qab osmosis cov dej ntshiab huv kev npaj dej: Siv cov kev npaj sib xyaw nrog cov txiaj ntsig zoo sib xyaw ua ke, nws tuaj yeem tiv thaiv kev tsim cov nplai thiab cov kab mob microbial slime, txhim kho tus nqi desalination thiab dej ntau lawm ntawm lub cev, thiab txuas ntxiv kev pab cuam lub neej ntawm RO. daim nyias nyias.
Tshwj xeeb los tiv thaiv scaling, tshwj xeeb tu tus neeg saib xyuas
Kev kho cov dej txias: xyuas kom cov dej txias yees, chillers thiab lwm yam khoom siv nyob rau hauv kev ua haujlwm zoo, tswj cov kab mob microbial zoo, inhibit qhov tsim ntawm nplai, thiab tiv thaiv corrosion ntawm cov kav dej. Txhawm rau ua tiav lub hom phiaj ntawm kev txo qis kev siv hluav taws xob thiab txuas ntxiv lub neej kev pab cuam ntawm cov khoom siv. Tsim ib txoj kev npaj kho dej rau qhov project, siv cov kev npaj ua dej sib xyaw ua ke thiab ua tiav kev pabcuam kev ua haujlwm.
Cov kab mob bactericidal algaecide
Lub boiler dej kho kev npaj txais ib tug compound npaj nrog zoo synergistic kev kho mob nyhuv los tiv thaiv corrosion thiab scaling ntawm lub boiler, stabilize lub boiler dej zoo, xyuas kom meej lub cev ua hauj lwm ntawm lub boiler, txo kev noj ntawm boiler lub cev, thiab ntev nws cov kev pab cuam lub neej. .
Compound boiler dej kho kev npaj
Muaj peev xwm ntxuav tus neeg sawv cev
Alkalinity adjuster
Txau chav dej circulating dej kev npaj: Tus neeg sawv cev yog ib tug compound npaj nrog broad dispersion muaj peev xwm. Cov xim residue nws kho tau zoo lub cev qhuav dej. Cov xim pleev xim uas kho tau yog nyob rau hauv cov khoom tsis nplaum, uas yooj yim rau kev khaws cia thiab lwm yam kev ua haujlwm nyob rau theem tom ntej. Kev lag luam ib puag ncig muaj tus phooj ywg interface thiab kev ua haujlwm ruaj khov. Nws tuaj yeem tiv thaiv cov teeb meem tshwm sim los ntawm cov xim pleev xim rau cov khoom siv hauv cov kav dej, thaum txo covCOD cov ntsiab lusnyob rau hauv dej, tshem tawm cov ntxhiab tsw, txhim kho ib puag ncig, thiab ncua kev pab cuam lub neej ntawm cov dej ntws.
Tshuab xim resin dispersant (xim xim coagulant)
suspending agent
Kev npaj kho dej khib nyiab: Siv cov cuab yeej kho dej tsim nyog, ua ke nrog kev kho dej sib sib zog nqus, cov dej kho tau tuaj yeem ua tau raws li GB5084-1992, CECS61-94 cov qauv dej rov qab, thiab lwm yam, thiab tuaj yeem siv tau ntev, txuag dej ntau. peev txheej.
Ib puag ncig tus phooj ywg COD tshwj xeeb tshem tawm
hnyav hlau ntes tus neeg sawv cev
Cov tshuaj kho dej thiab kev txuag dej
Yuav kom txuag tau dej, peb yuav tsum xub tuav cov dej ua lag luam uas siv ntau dua. Ntawm cov dej ua lag luam, cov dej txias tso nyiaj rau qhov loj tshaj plaws, suav txog li 60% txog 70%. Yog li ntawd, txuag dej txias tau dhau los ua txoj haujlwm tseem ceeb tshaj plaws ntawm kev txuag dej.
Tom qab cov dej txias tau rov ua dua tshiab, kev siv dej tau txais txiaj ntsig zoo heev. Txawm li cas los xij, vim cov dej txias tsis tu ncua, cov ntsev hauv cov dej yog cov concentrated, thiab kev sib cuag ntawm cov dej txias thiab cov huab cua ua rau cov ntsiab lus ntawm cov pa oxygen thiab cov kab mob, ua rau muaj kev loj hlob, corrosion thiab kab mob thiab algae. kev loj hlob nyob rau hauv lub circulating dej txias, uas ua rau lub tshav kub Lub pauv tus nqi yog heev txo thiab txij nkawm tsis tu ncua, hem cov khoom ib txwm. Vim li no, scale inhibitors, corrosion inhibitors, bactericidal algaecides thiab lawv cov kev txhawb nqa cov neeg ua haujlwm tu, pre-filming agents, dispersants, defoaming agents, flocculants, thiab lwm yam yuav tsum tau ntxiv rau cov dej txias. Cov txheej txheem thev naus laus zis no ntxiv cov tshuaj tiv thaiv kom tsis txhob scaling, corrosion, thiab kab mob thiab algae loj hlob hauv cov dej ntws yog hu ua chemical water treatment technology. Nws suav nrog pretreatment, tu, pickling, pre-filming, ib txwm noj, sterilization thiab lwm yam txheej txheem. Kev siv cov coagulants thiab flocculants hauv thawj kev kho cov dej phwj tuaj kuj yog ib qho tseem ceeb ntawm kev rov ua dej phwj tuaj. Cov cuab yeej siv tshuaj kho dej tam sim no tau lees paub hauv tsev thiab txawv teb chaws raws li kev siv dej ntau tshaj plaws thiab siv tau zoo ntawm kev txuag dej.
tshuaj dej kho tus neeg sawv cev
Kev kho tshuaj lom neeg yog ib qho kev kho mob uas siv tshuaj tua kab mob thiab tiv thaiv kom tsis txhob scaling, corrosion, kab mob thiab algae loj hlob, thiab kom huv si dej. Nws siv coagulants tshem tawm txhua yam impurities hauv cov dej nyoos, siv cov nplai inhibitors los tiv thaiv scaling, siv cov tshuaj tiv thaiv corrosion los tiv thaiv corrosion, siv cov kab mob bactericides los tiv thaiv kev loj hlob ntawm cov kab mob phem, thiab siv cov tshuaj ntxuav kom tshem tawm xeb residue, qub nplai, roj stains, lwm.
Muaj peb hom tshuaj kho dej uas siv ntau ntau: flocculants; cov kab mob bactericidal thiab algaecidal; thiab scale thiab corrosion inhibitors. Flocculant tseem hu ua coagulant. Nws txoj haujlwm yog txhawm rau txheeb xyuas cov teeb meem raug tshem tawm hauv dej thiab txo cov dej turbidity. Feem ntau, inorganic ntsev flocculant yog siv los ntxiv me me ntawm cov organic polymer flocculant, uas yog yaj hauv dej thiab sib tov sib npaug nrog cov dej kho kom nws raug tshem tawm. Feem ntau ntawm cov khoom poob qis. Cov kab mob bactericidal thiab algaecidal, tseem hu ua biocides, yog siv los tswj lossis tshem tawm cov kab mob thiab cov algae hauv dej. Cov nplai thiab cov tshuaj tiv thaiv corrosion feem ntau yog siv rau hauv cov dej txias kom nce qhov concentration ntawm cov dej, txo cov dej phwj tuaj kom ua tiav kev txuag dej, thiab txo qhov ntsuas kub thiab corrosion ntawm cov khoom siv hluav taws xob thiab cov kav dej.
Cia peb tsom ntsoov rau ob peb yam ntawm cov tshuaj kho dej no.
1. Flocculant
1. Starch derivative flocculant
Nyob rau hauv xyoo tas los no, hmoov txhuv nplej siab flocculants kuj tau siv dav hauv kev luam ntawv thiab dyeing dej khib nyiab. Li Xuxiang thiab lwm tus siv ammonium persulfate ua tus thawj coj rau kev cog qoob loo thiab copolymerize dej txiv ntseej hmoov thiab acrylonitrile. Cov hmoov txhuv nplej siab tau npaj tau ua ke nrog cov coagulant yooj yim aluminium chloride los kho cov luam ntawv thiab dyeing cov dej khib nyiab, thiab cov turbidity tshem tawm tuaj yeem ncav cuag ntau dua 70%. Zhao Yansheng li al., raws li ob-kauj ruam synthesis ntawm cationic starch flocculant los ntawm copolymerization ntawm starch thiab acrylamide, ua ib-kauj ruam synthesis thiab kev kawm ntawm starch-acrylamide graft copolymer hloov cationic flocculant CSGM. Cov txiaj ntsig zoo tau txais rau kev luam ntawv thiab dyeing cov dej khib nyiab los ntawm woolen mills. Chen Yucheng et al. siv cov khoom seem los ntawm kev tsim cov hmoov konjac, siv urea los ua ib qho catalyst, thiab ua flocculant No. 1 los ntawm phosphate esterification los kho luam ntawv thiab dyeing cov dej khib nyiab uas muaj cov sulfur dyes. Thaum cov koob tshuaj yog 120 mg / L, COD tshem tawm tus nqi yog 68.8%, thiab chroma tshem tawm tus nqi nce mus txog 92%. Yang Tongzai et al. synthesized cationic modified polymer flocculant siv cov hmoov txhuv nplej siab ua cov khoom siv raw, thiab siv nws los kho lub teeb muaj dej khib nyiab xws li luam ntawv thiab dyeing. Cov txiaj ntsig kev tshawb fawb tau pom tias qhov kev tshem tawm ntawm cov khib nyiab tshem tawm, COD, thiab chroma yog siab thiab cov sludge tau tsim. Qhov ntau yog me me, thiab qhov zoo ntawm cov dej khib nyiab kho tau zoo heev.
2. Lignin derivatives
Txij li thaum xyoo 1970, cov teb chaws txawv teb chaws tau kawm txog kev sib xyaw ntawm quaternary ammonium cationic surfactants siv lignin ua raw khoom, thiab siv lawv los kho cov dej khib nyiab thiab ua tiav cov txiaj ntsig zoo flocculation. Zhu Jianhua thiab lwm tus hauv kuv lub tebchaws tau siv lignin hauv papermaking ua kua khib nyiab los ua ke cationic surfactants los kho luam ntawv thiab dyeing dej khib nyiab. Cov txiaj ntsig tau pom tias lignin cationic surfactants muaj cov khoom flocculation zoo thiab tus nqi decolorization ntau dua 90%. Zhang Zhou et al. rho tawm lignin los ntawm straw pulp dub cawv raws li ib tug flocculant, thiab muab piv cov teebmeem nrog txhuas chloride thiab polyacrylamide, lees paub qhov superiority ntawm lignin hauv kev kho cov luam ntawv thiab dyeing cov dej khib nyiab. Li Zhongfang et al. kawm txog kev rho tawm ntawm lignin los ntawm alkali straw pulp dub cawv ua ntej thiab tom qab kev kho mob anaerobic raws li flocculant los kho luam ntawv thiab dyeing dej khib nyiab, thiab ua tiav cov txiaj ntsig zoo. Ntawm no, Lei Zhongfang et al. kuj tau kawm txog cov nyhuv flocculation ntawm lignin. Lub tshuab ua pov thawj tias lignin flocculant yog tus neeg sawv cev kho dej nrog cov teebmeem tshwj xeeb ntawm cov kua qaub siab thiab cov kua qaub pov tseg.
3. Lwm yam natural polymer flocculants
Miya Shiguo thiab lwm tus siv cov khoom siv ntuj tsim los ua cov ntaub ntawv tseem ceeb, thiab tom qab kev ua haujlwm ntawm lub cev thiab tshuaj lom neeg, lawv tau ua ib qho amphoteric composite coagulation decolorizing tus neeg sawv cev ASD-Ⅱ los flocculate dyeing khib nyiab ntawm kev txo qis, vulcanization, naftol, cationic thiab reactive dyes hauv luam ntawv. thiab dyeing nroj tsuag. Hauv kev sim decolorization, qhov nruab nrab decolorization tus nqi yog ntau dua 80%, nrog rau qhov siab tshaj plaws ntawm ntau tshaj 98%, thiab COD tshem tawm tus nqi yog qhov nruab nrab ntawm ntau dua 60%, nrog rau qhov siab tshaj plaws ntawm ntau tshaj 80%. Zhang Qiuhua et al. siv cov tsim carboxymethyl chitosan flocculant los kho kev luam ntawv thiab dyeing dej khib nyiab los ntawm lub Hoobkas phuam. Cov txiaj ntsig kev sim tau pom tias carboxymethyl chitosan flocculant yog qhov zoo tshaj rau lwm cov kev siv dej khib nyiab zoo thiab COD tshem tawm cov teebmeem. Molecular flocculants.
2. Cov kab mob bactericidal thiab algaecide
Nws tuaj yeem khawb tawm algae reproduction thiab slime loj hlob. Nws muaj peev xwm ua kom tsis muaj menyuam thiab tua cov algae hauv cov pH sib txawv, thiab muaj kev cuam tshuam thiab nkag mus. Nws tuaj yeem nkag mus thiab tshem tawm slime thiab tev tawm cov algae txuas.
Tsis tas li ntawd, nws muaj peev xwm tshem tawm cov roj. Nws yog dav siv nyob rau hauv circulating dej txias systems, roj teb dej txhaj tshuab, thiab chilled dej systems. Nws tuaj yeem siv los ua cov tsis muaj oxidative sterilizing thiab algaecide tus neeg sawv cev thiab cov slime stripper. Nws kuj tseem tuaj yeem siv los ua tus neeg sawv cev rau cov acrylic fiber ntau dyeing thiab smoothening ua ntej textile ua. thiab kho antistatic.
3. Scale thiab corrosion inhibitors
Hydroxyethylidene diphosphonic acid HEDP
yam ntxwv:
HEDP yog ib qho organic phosphoric acid nplai thiab corrosion inhibitor uas tuaj yeem tsim kev ruaj khov nrog ntau yam hlau ions xws li hlau, tooj liab, thiab zinc, thiab tuaj yeem yaj oxides ntawm cov hlau. HEDP tseem tuaj yeem ua lub luag haujlwm zoo hauv corrosion thiab scale inhibition ntawm 250 ° C, tseem ruaj khov nyob rau hauv siab pH qhov tseem ceeb, tsis yooj yim rau hydrolyze, thiab tsis yooj yim rau decompose nyob rau hauv lub teeb thiab cua sov. Nws cov kua qaub thiab alkali tsis kam thiab chlorine oxidation kuj zoo dua li lwm cov organic phosphates (ntsev). HEDP tuaj yeem tsim tau rau lub nplhaib chelate nrog hlau ions hauv dej, tshwj xeeb tshaj yog calcium ions. Yog li ntawd, HEDP muaj qhov cuam tshuam zoo ntawm qhov cuam tshuam thiab qhov pom tseeb ntawm kev txwv kev txwv. Thaum siv ua ke nrog lwm cov tshuaj kho dej, nws qhia tau hais tias zoo tagnrho Synergy. HEDP cov khoom yog cov khoom siv purity siab siv rau hauv cov cheeb tsam uas muaj huab cua txias heev; nws yog tshwj xeeb tshaj yog haum rau tu cov neeg ua hauj lwm thiab niaj hnub tshuaj additives nyob rau hauv lub electronics kev lag luam.
HEDP daim ntawv thov Scope thiab kev siv
HEDP yog dav siv nyob rau hauv kev lag luam circulating dej txias tshuab xws li hluav taws xob fais fab, tshuaj lom neeg kev lag luam, metallurgy, thiab chiv, raws li zoo raws li nyob rau hauv nruab nrab thiab qis-siab boilers, roj teb dej txhaj, thiab roj pipelines rau scale thiab corrosion inhibition. HEDP tuaj yeem siv los ua tus neeg saib xyuas cov hlau thiab cov hlau tsis muaj hlau hauv kev lag luam textile. , peroxide stabilizer thiab xim-kho tus neeg saib xyuas hauv kev lag luam bleaching thiab dyeing, thiab complexing tus neeg saib xyuas hauv kev lag luam tsis muaj cyanide electroplating. HEDP feem ntau yog siv ua ke nrog polycarboxylic acid-type scale inhibitor thiab dispersant.
Kev lag luam tus neeg saib xyuas dej yog booming hauv 2009
Niaj hnub no, kev kho dej phwj tuaj tau txais kev saib xyuas los ntawm cov lag luam hauv tsev. Tsis tas li ntawd, cov lag luam hauv qab tau pib ua haujlwm tom qab pib lub caij nplooj ntoos hlav, thiab qhov kev thov rau cov neeg ua haujlwm kho dej tau nce zuj zus ib hnub. Tag nrho cov xwm txheej ntawm cov lag luam uas tau txais carbon thaum pib ntawm lub xyoo yog zoo dua li xyoo tas los. Tus neeg sau xov xwm tau kawm tias txhua xyoo cov khoom tsim tawm ntawm cov neeg ua dej lim dej hauv Gongyi City, Henan Xeev suav txog 1/3 ntawm lub teb chaws tag nrho, thiab muaj 70 lossis 80 lub chaw ua dej lim dej.
Peb lub teb chaws tseem ceeb heev rau kev tiv thaiv dej thiab kev kho dej phwj tuaj, thiab tau nce ntxiv kev txhawb nqa ntawm cov cai tshwj xeeb. Txawm hais tias thaum lub ntiaj teb kev kub ntxhov nyiaj txiag muaj kev cuam tshuam loj rau kev lag luam tshuaj, lub teb chaws tsis so nws txoj kev tswj hwm ib puag ncig thiab txiav txim siab kaw cov tuam txhab tshuaj lom neeg nrog cov pa phem loj. Nyob rau tib lub sijhawm, nws txhawb kev nqis peev thiab tsim cov haujlwm tsis muaj kuab lom thiab tsis muaj tshuaj lom neeg tsawg. . Yog li ntawd, cov tuam txhab kev kho dej yuav ua rau muaj kev txhim kho tshiab hauv xyoo 2009.
Xyoo tas los, vim tias txo qis kev txiav txim rau cov tuam txhab kho dej, qhov kev ua haujlwm tag nrho tsuas yog nyob ib ncig ntawm 50% rau tag nrho lub xyoo. Tshwj xeeb tshaj yog nyob rau lub hlis tom qab kev kub ntxhov nyiaj txiag tau tawm, qhov kev khiav hauj lwm tau qis dua. Txawm li cas los xij, kev txiav txim siab los ntawm qhov xwm txheej tam sim no, ntau lub tuam txhab tau maj mam rov pib tsim khoom thiab maj mam tawm ntawm tus duab ntxoov ntxoo ntawm kev kub ntxhov nyiaj txiag.
Tam sim no, kev khiav hauj lwm tus nqi ntawm ntau manufacturers ntawm papermaking flocculants nyob rau hauv Guangdong yog nce. Tsis ntev los no, cov kev txiav txim muab rau peb los ntawm cov tuam txhab tiv thaiv ib puag ncig kuj tau nce ntxiv. Kev khiav hauj lwm tus nqi ntawm cov lag luam tau nce. Qhov no feem ntau yog vim li cas hauv qab no: Ua ntej, kev lag luam downstream thiab dyeing, luam ntawv thiab dyeing, Papermaking tuam txhab uas muag tau pib ua hauj lwm ib tom qab. Vim hais tias xws li kev lag luam yuav tsim cov dej khib nyiab ntau tom qab kev ua haujlwm, qhov kev thov rau cov neeg ua haujlwm kho dej xws li papermaking flocculants yuav nce, uas yuav ua rau muaj kev nce ntxiv rau cov neeg ua haujlwm kho dej; Thib ob, ntau yam kev lag luam tshuaj lom neeg yooj yim tshwm sim los ntawm kev kub ntxhov nyiaj txiag Tus nqi ntawm cov khoom siv raw tau poob qis, thaum qhov kev poob qis ntawm cov neeg siv khoom kawg xws li papermaking, dyes, khaub ncaws, thiab lwm yam tsis tseem ceeb, uas tau txo cov nqi ntawm cov dej. cov tuam txhab kho mob thiab nce lawv cov nyiaj tau los; thib peb, txij li xyoo tas los, lub teb chaws txoj cai tiv thaiv ib puag ncig tau dhau los ua nruj dua. nruj me ntsis, tag nrho cov tshuaj, luam ntawv thiab dyeing, thiab cov ntawv ua lag luam tau nce lawv cov kev siv zog hauv kev tsim cov dej phwj tuaj. Ntau lub lag luam nyob rau hauv kev tsim kho theem ntawm cov chaw thiab tsis tau tsim tiag tiag thov rau cov neeg ua hauj lwm kho dej. Txawm li cas los xij, thaum pib ntawm lub xyoo no, kev tsim kho ntawm cov phiaj xwm tau pib ua tiav. Ua kom tau raws li cov qauv tau tsim muaj kev thov rau cov neeg ua haujlwm kho dej. Tsis tas li ntawd, tom qab kev kub ntxhov nyiaj txiag tau tshwm sim thaum lub Cuaj Hlis xyoo tas los, kev nqis peev hauv kev tswj hwm kev tiv thaiv ib puag ncig kuj tau nkag mus rau lub sijhawm luv nqi. Tsav los ntawm ob qhov txiaj ntsig no, xyoo no yuav tsim lub sijhawm xav tau ntau rau cov neeg ua haujlwm kho dej; thib plaub, nws yog raws li kev nqis peev zoo tam sim no. Txhawm rau kom kov yeej cov teeb meem nyiaj txiag, lub xeev tau txuas ntxiv nthuav tawm cov cai txhawb kev nyiam, tshwj xeeb hauv kev kho dej khib nyiab. Yog li ntawd, cov ntsiab lus loj hlob tshiab rau cov tuam txhab kev kho dej yuav maj mam tsim.
Ib tus neeg muag khoom uas tau koom nrog kev muag khoom ntawm polyaluminium chloride tau ntau xyoo tau tshaj tawm tias tam sim no qhov kev xav tau ntawm kev lag luam nce ntxiv, txo cov nqi tsim khoom, thiab kev txhawb nqa txoj cai yog qhov zoo rau lub tuam txhab, tab sis tib lub sijhawm, lawv xav tias tsis muaj kev kub ntxhov. Vim hais tias thaum cov tuam txhab downstream tso kev txiav txim tam sim no, lawv cov kev xav tau rau ob qho tib si khoom zoo thiab kev pab cuam tom qab muag yog siab dua ua ntej. Qhov no ua rau cov tuam txhab cuam tshuam tsis yog tsuas yog txeeb cov hauv kev txhim kho, tab sis kuj hloov kho cov ntsiab lus raws sijhawm thiab nce kev hloov pauv thev naus laus zis. Txhim kho cov khoom zoo thiab nce kev nqis peev hauv kev tshawb fawb thiab kev tsim cov khoom siv kho dej tshiab los tsim lub hauv paus ruaj khov rau kev noj qab haus huv thiab kev loj hlob mus ntev ntawm tag nrho cov dej kho tus neeg saib xyuas kev lag luam.
Txoj kev loj hlob ntawm cov tshuaj kho dej zoo li ntsuab
Thaum lub sij hawm tig ntawm lub xyoo pua, cov kev hloov pauv loj tau tshwm sim nyob rau hauv txoj kev loj hlob ntawm lub ntiaj teb chemistry thiab chemical engineering kev qhuab qhia, uas tau cim los ntawm kev qhia txog lub tswv yim ntawm "green chemistry". Raws li tus neeg sawv cev kho dej rau cov tshuaj tshwj xeeb, nws txoj kev txhim kho yog ze ze rau cov tshuaj ntsuab ntsuab.
Kev nrhiav kev cog qoob loo ntawm cov tshuaj kho dej pib los ntawm kev txhim kho kom ruaj khov kom ua tiav cov khoom lag luam ntsuab ntawm cov khoom siv kho dej, kev cog qoob loo ntawm cov khoom siv raw thiab kev hloov cov tshuaj reagents siv nyob rau hauv cov dej kho tus neeg sawv cev, kev cog qoob loo ntawm cov tshuaj kho dej tshuaj tiv thaiv cov txheej txheem, thiab ntsuab ntawm dej kho tus neeg saib xyuas cov tshuaj tiv thaiv. Greening ntawm ib puag ncig tej yam kev mob tau dhau los ua kev kawm frontier thiab tseem ceeb tshawb fawb thiab kev loj hlob kev taw qhia ntawm natural sciences.
Qhov teeb meem tseem ceeb tshaj plaws nyob rau tam sim no yog kev cog qoob loo ntawm lub hom phiaj molecule dej kho cov khoom, vim tias tsis muaj lub hom phiaj molecule, nws cov txheej txheem ntau lawm yuav ua tsis tau. Pib los ntawm lub tswv yim ntawm ntsuab chemistry, raws li tus kws sau cov kev coj ua thiab kev paub dhau los, kev cog qoob loo ntawm cov tshuaj kho dej tuaj yeem pib los ntawm cov hauv qab no. Tsim cov tshuaj kho dej nyab xeeb Lub tswv yim ntawm ntsuab chemistry yog reshaping txoj kev loj hlob ntawm kev kho dej technology thiab tshuaj kho dej. Biodegradability, uas yog, cov tshuaj tuaj yeem decomposed los ntawm cov kab mob mus rau hauv cov ntaub ntawv yooj yim, ib puag ncig siv tau, yog ib txoj hauv kev tseem ceeb los txwv kev sib sau ntawm cov tshuaj hauv ib puag ncig. Yog li ntawd, thaum tsim cov tshuaj kho dej tshiab uas muaj kev nyab xeeb dua thiab nyab xeeb rau tib neeg, biodegradability yuav tsum yog qhov tseem ceeb.
Cov kev sim synthesis peb tau ua qhia tau hais tias linear polyaspartic acid nrog cov txheeb ze molecular hnyav tau zoo heev dispersion, corrosion inhibition, chelation thiab lwm yam dej num, thiab yuav siv tau raws li ib tug scale inhibitor, corrosion inhibitor thiab dispersant. Rov ntsuam xyuas cov khoom siv kho dej uas twb muaj lawm Txij li thaum kuv lub teb chaws tau pib tshawb fawb thiab txhim kho cov cuab yeej kho dej niaj hnub thiab cov tshuaj kho dej thaum ntxov xyoo 1970, ntau qhov tseem ceeb tau ua tiav. Tshwj xeeb tshaj yog thaum lub sij hawm "Yim Tsib Xyoo Plan" thiab "Ninth Five-Year Plan" lub sij hawm, lub xeev tau muab kev txhawb nqa tseem ceeb rau kev tshawb fawb thiab kev tsim cov tshuaj kho dej, uas tau txhawb nqa kev loj hlob ntawm kev kho dej science thiab technology thiab tsim ib tug series. ntawm technologies thiab cov khoom uas muaj kev ywj pheej kev txawj ntse muaj cai.
Tam sim no, peb cov tshuaj kho dej feem ntau suav nrog cov tshuaj tiv thaiv corrosion, scale inhibitors, biocides thiab flocculants. Ntawm lawv, corrosion inhibitors thiab scale inhibitors yog ze rau thoob ntiaj teb qib siab nyob rau hauv cov nqe lus ntawm ntau yam kev loj hlob. Tam sim no, cov qauv ntawm cov dej zoo stabilizers siv nyob rau hauv kev lag luam circulating dej txias yog feem ntau phosphorus-raws li, accounting txog li 52 ~ 58%, molybdenum-raws li formulas account rau 20%, silicon-raws li formulas account rau 5% -8%, thiab tungsten-raws li formulas account rau 5% %, lwm cov qauv account rau 5% ~ 10%. Lub tswv yim ntawm ntsuab chemistry yog rov ntsuam xyuas lub luag haujlwm thiab kev ua haujlwm ntawm cov tshuaj kho dej uas twb muaj lawm. Rau cov khoom uas nws lub luag haujlwm twb paub lawm, biodegradability yog qhov ntsuas tseem ceeb tshaj plaws.
Txawm hais tias phosphorus-based corrosion thiab scale inhibitors, polyacrylic acid thiab lwm yam polymers thiab copolymer scale inhibitors uas tam sim no dav siv nyob rau hauv kev ua lag luam tau ua breakthroughs nyob rau hauv cov dej txias kev kho mob technology, lawv tau ua lub luag hauj lwm tseem ceeb nyob rau hauv kev daws teeb meem ntawm dej resource depletion ntsib. los ntawm noob neej. ua lub luag haujlwm tseem ceeb.
Post lub sij hawm: Mar-01-2024
