Ka Loetse, indasteri ea lapeng ea khatiso le ho daea e ile ea kena nakong ea tlhoro ea "golden robong le silevera e leshome". E susumetsoa ke litheko tse ntseng li phahama tsa thepa e tala le tlhokahalo e ntseng e eketseha e tsoang liindastering tse tlase tse kang indasteri ea masela, 'maraka oa li-dyestuff o qhalaneng o se o qalile ho nyoloha, ka litheko li nyoloha mathoasong a Phato hape hape ka Loetse. Lik'hamphani tse ngata tsa dae li senotse hore li mothating oa ho nyolla litheko tsa tsona.

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Ho latela mohloli, k'hamphani e etelletseng pele ea dae, k'hamphani ea indasteri ea mit-ivy, e se e fana ka li-yuan tse 32,000 ka tone bakeng sa dae e hasaneng, ho tloha ho theko e tlase haholo ea li-yuan tse 22,000 halofong ea pele ea selemo sena. Ho na le maikutlo a akaretsang indastering ea hore mocha oa theko e holimo 'marakeng oa dae o butsoe.

Ho boleloa esale pele hore karolong ea bone ea 2020, le hoja tlhokahalo ea 'maraka oa dae e se betere ho feta lilemong tse fetileng, e lebelletsoe ho ntlafala haholo ha e bapisoa le likarolo tse tharo tsa pele. Ha seoa sena se ntse se ntlafala, litaelo tse tsoang lifekthering tse hatisang le ho daea li tla eketseha, ’me tloaelo ke ea hore lifeme tsa khatiso le tse daeang li tlatse lethathamo la tsona le ho reka ha li batloa.

Karolong ea pele ea Loetse, tšimoloho e kholo ea Zhejiang le Jiangsu e ile ea qhalakanya tlhahiso e ntšo ea ECT300% ea 'maraka e ka bang 32 yuan/kg, puisano e le 'ngoe e le 27-28 yuan/kg; Guangdong, sebakeng sa Fujian ho buisana ka theko ea 32 yuan/kg haufinyane.

Likhoebo tse ngata tsa dyestuff li bontšitse hore ka lebaka la keketseho ea theko ea setsi sa mantlha sa dyestuff, theko ea mefuta e meholo ea li-disperse dyestuff e nyolohetse ho 32,000 yuan/ton, empa theko ea transaction ha e so fihle, haholo hobane ea khale. litaelo li tlameha ho etsoa ho ea ka theko e fetileng. Le hoja ho na le keketseho e itseng ea theko, ha e bapisoa le potoloho ea histori, theko ho tloha qalong ea selemo ho ea halofo ea pele ea selemo e boemong bo tlaase lilemong tse peli kapa tse tharo tse fetileng, kahoo ka mor'a hore ho be le mekhahlelo e mengata ea theko e ntseng e eketseha. theko e se e le boemong bo itekanetseng feela. Litheko tse tlase tsa selemo sena li pakeng tsa 22,000 le 23,000 ka theko ea theko ea lithane.

Hajoale, baetsi ba malapeng feela ba hlahisang li-IED ke k'hamphani ea Mit-ivy Industry le k'hamphani ea lik'hemik'hale ea bochabela ivy, 'me k'hamphani ea lik'hemik'hale ea bochabela ea Ivy e tlameha ho emisa tlhahiso ka Phupu ka lebaka la mathata a taolo ea ts'ireletso, le ho phethela tokiso le kamohelo pele ho la 9 Mphalane. ebe ho qalella tlhahiso ka mor'a hore tumello e fetisitsoe, ke Mit-ivy Industry Company feela, e hlahisang dae e bohareng ea meso-phenylenediamine, e nang le karolo e fetang 99% ea karolo ea mmaraka, e leng se mpefatsang khaello ea phepelo ea mmaraka.

Ho tloha ka Phupu selemong sena, theko ea M-Phenylenediamine e nyolohetse ho li-yuan tse 70,000 ka tone, kapa ho feta 15%. Lilemong tsa morao tjena, theko ka tone ea M-Phenylenediamine e fihlile holimo ho li-yuan tse 150,000, 'me ho ntse ho bonahala eka ho na le sebaka sa ho eketseha ha theko.

Hona joale, ha tlhokahalo e tlaase e ntse e hlaphoheloa butle-butle 'me litheko tsa lihlahisoa tse tala tse kang is-phenylenediamine, cobalt chloride le cobalt sulfate li ntse li phahama, litšenyehelo tse ntseng li phahama li khothalelitse baetsi ba dae ba bangata ho phahamisa litheko tsa bona. Litheko tsa lidae tse qhalakaneng li se li le boemong bo phahameng, empa li ntse li le boemong bo tlaase ho isa boemong bo itekanetseng ha li bapisoa le litheko tsa histori. Leano la tokiso ea litheko tsa likhoebo tse holimo li ka etsa hore barekisi ba tlatse thepa kapa ba bokelle esale pele.

Hoa hlokomeleha hore, ho ea ka mohloli, k'hamphani ea lik'hemik'hale ea East ivy, e leng mofani e moholo oa mesophenylenediamine Chaena e nang le matla a selemo le selemo a lithane tse 15,000, e ile ea tsosolosa tlhahiso qetellong ea May selemong sena 'me e sa tsoa emisa tlhahiso. Lebaka ke hore k'hamphani ea lik'hemik'hale ea East ivy e fumanoe e na le mathata a tebileng taolong ea polokeho, matsete a polokeho le koetliso ea basebetsi le thuto nakong ea tlhahlobo ea "Casting Safety 2020" profinseng ea Sichuan, mme e kopiloe ho emisa tlhahiso ka Phupu mme e phethe tokiso le tokiso. kamohelo pele ho October 9. Ho tsosolosoa ha tlhahiso ho bakile matšoenyeho mabapi le botsitso ba phepelo ea mesophenylenediamine.

Liodara tse tsoang litsing tse daeang le tse hatisang li se li ntse li hlaphoheloa, kahoo tšebeliso ea bona ea thepa e tala le eona e ntse e eketseha, e leng se ba susumelletsang hore ba eketse metšoasong ea bona ba sa etse letho. 'Me ka mor'a hore litheko tse peli li eketsehe ka August le September, bareki ba tlaase ba tla ba le tšabo ea hore theko e tla tsoela pele ho phahama, kahoo nako ena ba tla ea ho notlela karolo ea phepelo ea morao-rao ea thepa e tala, e lebisang morerong oa morao tjena oa ho reka. ho ntlafatsa.

Tlaleho ea indasteri ea mit-ivy, hajoale, China ke eona e hlahisang lidae e kholo ka ho fetesisa, likhoebo tsa dae li tsepamisitsoe haholo ho Zhejiang, Jiangsu le Shanghai, e leng tšimoloho e meraro ea mantlha, tlhahiso ea eona le kantle ho naha ea lidae li ikarabella ho feta 90% ea 'maraka oa naha. bophahamo ba modumo. Baetsi ba ka sehloohong ke Mit-ivy Industry Company, Runtu, Yabang, Jihua Group, Anocy, joalo-joalo, ba nang le tokelo ea ho bua 'marakeng.

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E le e 'ngoe ea lik'hamphani tse 500 tse phahameng ka ho fetisisa tsa tlhahiso ea China, Mit-ivy Industry Company e na le tlhahiso ea selemo le selemo ea lithane tse 300,000 tsa dae le lithane tse 100,000 tsa li-additives, e leng se etsang hore e be moetsi o moholo ka ho fetisisa oa dae lefatšeng. E na le lithane tse 80,000 tsa matla a tlhahiso le lithane tse ka bang 20,000 tsa lidae tse ling, e na le karolo ea bobeli e kholo ka ho fetisisa ea 'maraka oa lapeng oa dae. Sehlopha sa Jihua, se maemong a boraro indastering mabapi le tlhahiso ea lidae, hajoale se na le matla a lithane tse 70,000 tsa lidae tse qhalaneng, lithane tse 15,000 tsa lidae tse sebetsang le lithane tse 10,000 tsa lidae tse ling.

Ho latela tlhahlobo e entsoeng ke Inner Mongolia Chemical Industry WeChat, theko ea lidae tse qhalakaneng e maemong a tlase haholo lilemong tse tharo tse fetileng, athe lidae tse sebetsang li maemong a tlase haholo lilemong tse 10 tse fetileng. Kaha lik'hamphani tse ngata tsa dae li le mothating oa tahlehelo, ho nyoloha ha theko ke eona feela tsela ea ho ipholosa. Nakong e tlang, ho ntse ho e-na le sebaka sa ho eketseha ha theko 'marakeng oa dae o qhalaneng,' me likhoebo tsa khatiso le dae li eletsoa ho boloka chelete esale pele.

Mehaho ea boenjiniere ea tšireletso ea tikoloho, taba ea ho phela le nts'etsopele

Likhamphani tsa ho daea le ho hatisa li hloka ho khetha theknoloji e nepahetseng

Ho tlosa COD e tebileng le ho theola 'mala oa ho hatisa le ho daea metsi a litšila

Ho daea metsi a litšila ke e 'ngoe ea metsi a litšila a ka sehloohong a kotsi a indasteri, haholo-holo ho tloha tlhahiso ea li-dyestuffs le li-intermediates tsa dae, tse nang le lino tse tahang tse tsoang ho crystallization ea lihlahisoa tse fapaneng le li-intermediates, lisebelisoa tse lahlehileng ts'ebetsong ea tlhahiso le metsi a litšila ho tloha ho hlatsoa fatše. Ha indasteri ea khatiso le ea ho daea e ntse e hōla, tlhahiso ea eona ea metsi a litšila e fetohile mohloli o moholo oa tšilafalo ea metsi.

Ho ea ka basebetsi ba tekheniki ba Jiangsu Hapu Functional Materials Co., Ltd, China ke naha e kholo e hlahisang dae, 'me indasteri ea masela e ntse e hola ka potlako lilemong tsa morao tjena, ka tlhahiso ea China ea mefuta e fapaneng ea dae e fihlang ho lithane tse 900,000, e etsang chelete e ka bang 60. % ea tlhahiso ea dae lefatšeng. Ho latela litšoaneleho tse fapaneng tsa lidae, lidae li ka aroloa ka mekhahlelo e fapaneng, ho latela sebopeho sa tsona sa lik'hemik'hale: lidae tsa azo, lidae tsa anthraquinone, lidae tsa indigo, lidae tsa sebabole, lidae tsa quinine, lidae tsa triarylmethane, lidae tsa heterocyclic.

Leha ho le joalo, metsi a litšila a nang le lidae tsena tse qhibilihang ka har'a metsi le tsona ke e 'ngoe ea lintho tse thata ho hloekisa metsi a litšila, 'me mekhoa e tloaelehileng ea ho hloekisa metsi ha e sebetse hantle ho phekola lidae tsena. Bongata ba lidae tse nang le lirafshoa tse boima li na le chromium, e leng carcinogenic, lidae tse qhalakaneng ha li teng joalo ka li-ion tharollong, lidae tse ngata tse qhalakaneng li na le bioaccumulative, 'me lidae tse qhalakaneng li tsitsitse ka lik'hemik'hale ebile ha li senyehe hantle, ka hona, lits'ebetso tsa setso tsa kalafo ea metsi ha li joalo. e sebetsang haholo ho tloseng didae tse qhalaneng

I. Litšobotsi tsa ho hatisa le ho daea metsi a litšila

Ts'ebetsong ea tlhahiso ea dyestuff, e kang sulfonation, nitrification, diazotization, ho fokotsa, oxidation le karohano ea acid (letsoai), palo e kholo ea litšila e hlahisoa.

Ho hakanngoa hore 90% ea lihlahisoa tse tala le 10% ~ 30% ea lihlahisoa tse tala tse hlahisoang ke dae li fetisetsoa metsing.

Metsi a litšila a dae a na le litšobotsi tse latelang.

1

(2) Lintho tsa dae le limolek'hule tse mahareng hangata li na le lihlopha tsa polar, tse matlafatsang ho qhibiliha ha metsi le ho baka tahlehelo e kholo ea lintho ka lebaka la ts'ebetso ea tlhahiso le sebopeho sa limolek'hule.

(3) Metsi a litšila a daea hangata a na le asiti, empa hape a na le alkaline, 'me ka kakaretso a na le letsoai le lengata.

(4) Tlhokahalo e ntseng e eketseha ea mebala e mebala-bala, mefuta e mengata e ntseng e eketseha ea dae, le tsoelo-pele ea ho hanyetsa photolysis, oxidation le biodegradation li etsa hore metsi ana a litšila a be thata le ho feta ho hloekisoa ke mekhoa e akaretsang ea ho hloekisa metsi.

(5) 'Mala le ho benya ha metsi a litšila a daeang hangata ho lefifi, 'me lik'hemik'hale tsa biochemical ha li ntle. Ho phaella moo, metsi a litšila nakong ea khatiso a na le palo e kholo ea li-dyestuffs le li-axiliary hammoho le palo e kholo ea li-slurries, kahoo BOD5 le COD ea metsi a litšila li batla li le holimo.

Ea bobeli, phekolo ea ho hatisa le ho daea metsi a litšila

1. Mokhoa oa ho arola li-membrane

Mokhoa oa karohano ea li-membrane ke ts'ebeliso ea lifilimi tse ikhethileng mabapi le ho kenella ha mokelikeli oa likarolo tse itseng tsa mokhoa o akaretsang, mekhoa e tloaelehileng ea karohano ea membrane ke dialysis, electrodialysis, ultrafiltration le reverse osmosis, empa thekenoloji ea karohano ea lera ka lebaka la khatello ea maikutlo e fapaneng. , tšilafalo ea lera le theko ea li-membrane tse theko e boima, sekhahla sa ho fetola se potlakile, e le hore litšenyehelo tsa phekolo li phahame, kahoo li sitisa ka ho teba theknoloji ea karohano ea lera bakeng sa lisebelisoa tse kholo tsa indasteri.

2. Mokhoa oa ho ntša

Mokhoa oa ho ntša metsi a litšila ka dae ke tšebeliso ea ntho e sa tsitsang kapa e sa qhibiliheng ka har'a mokelikeli oa metsi ho ntša limolek'hule tsa dae metsing. Mekhoa e tloaelehileng ea ho ntša metsi ke ho ntša tharollo, ho ntša electrophoretic, mokhoa oa membrane ea metsi.

3. Mokhoa oa mahlaseli

Mahlaseli a microwave ke mokhoa oa mahlaseli o atisang ho sebelisoa ho phekola metsi a litšila a dae, empa phephetso e kholo ea theknoloji ena e sebelisoa ho hlahisa likaroloana tse phahameng tsa matla a lisebelisoa tse theko e boima, litlhoko tse phahameng tsa tekheniki, le mokhoa oa tšebeliso e kholo ea matla, sekhahla sa tšebeliso ea matla. tlase; ho phaella ho qoba kotsi ea mahlaseli 'meleng oa motho, empa hape ho hlokahala mehato e khethehileng ea tšireletso. Ka hona, molao o lokelang ho kenngoa ts'ebetsong, o boetse o hloka ho etsa lipatlisiso tse ngata le mosebetsi oa ho hlahloba.

4. Mokhoa oa oxidation

Mokhoa oa oxidation hape ke mokhoa o tloaelehileng oa ho hloekisa metsi a litšila a nang le dyestuff, haholo-holo ho kenyelletsa mokhoa o phahameng oa mocheso o tebileng oa oxidation, mokhoa oa lik'hemik'hale oa oxidation le mokhoa oa photocatalytic oxidation.

5. Coagulation

Coagulation ke mokhoa o tloaelehileng oa phekolo ea metsi a litšila, haholo-holo mokhoa oa ho kopanya le oa sedimentation, mokhoa oa ho kopanya le moea oa ho phalla.

6. Mekhoa ea likokoana-hloko

Mokhoa oa baeloji o sebelisoa haholo metsing a litšila a dae. Mokhoa oa baeloji o na le melemo ea phello e ntle ea kalafo le litšenyehelo tse tlase tsa ts'ebetso, empa ka lebaka la mabaka a tekheniki, mokhoa ona ha oa tsitsa ebile ha o sebetse haholo, 'me o susumetsoa haholo ke mabaka a kantle, ka hona o thibetsoe ts'ebelisong e sebetsang ho isa tekanyong e itseng. .

7. Mokhoa oa Adsorption

Ts'ebetso ea adsorption e susumetsoa ke lintlha tse ngata tsa physicochemicals, tse kang ho sebelisana ha dae - adsorbent, sebaka se itseng sa sebaka sa adsorbent, boholo ba likaroloana tsa adsorbent, mocheso, pH ea bohlokoa le nako ea adsorption.

Litlhoko tsa bareki ba indasteri

Sebopeho sa metsi a litšila a dae ke hore a ke ke a phekoloa ka mekhoa ea setso ho finyella litekanyetso tsa ho qhala, ka hona, mokhoa oa adsorption o entsoeng ke Hapu Functional Materials o ka sebelisoa ho tšoara mofuta ona oa metsi a litšila ho finyella tekanyo pakeng tsa phello ea phekolo le litšenyehelo tsa moruo. .

Litlhoko tsa ho hloekisa metsi a litšila tsa bareki ba likhoebo tse hlahisang metsi a litšila a dae li kenyelletsa lintlha tse tharo tse latelang.

(1) Ho tlosoa ka mokhoa o atlehileng le o tsitsitseng oa COD le chromaticity ho tloha metsing a litšila a hloekisitsoeng ho ea ka tlase ho moeli oa ho ntša metsi.

(2) Litšenyehelo tse tlase tsa nako e le 'ngoe tsa matsete, litšenyehelo tse tlase tsa ts'ebetso le ts'ebetso e bonolo le tlhokomelo ea lisebelisoa.

(3) Ts'ebetso e tsoetseng pele le e tšepahalang, ha ho na tšilafalo ea bobeli.

D. Hapo ho hatisa le ho daea bahlahisi ba mokhoa oa ho hloekisa metsi a litšila le linyeoe tsa kopo

Molao-motheo oa Hapu adsorption process ke ho khetha likarolo kapa lintho tse lokelang ho tlosoa ka ho sebelisa adsorbent e khethehileng e entsoeng ke k'hamphani ea rona, 'me ha adsorption e tletse, adsorbent e tla senyeha ka ho sebelisa desorbent e itseng ho tsosolosa adsorbent.

Hapo ho hatisa le ho daea bahlahisi ba ts'ebetso ea ho hloekisa metsi a litšila le linyeoe tsa kopo

1. Khoebo e Profinseng ea Shandong e hloka hore litaba tsa COD ka metsing a litšila a hloekisitsoeng li be ka tlase ho 500mg/L. Phello ea kalafo ea liteko e bontša hore COD ka metsing a litšila e ka ba tlase ho feta 500mg/L ka ho sebelisa kalafo ea adsorption.

Phello ea phekolo ea adsorption ea metsi a litšila a dae e bontšoa tafoleng.

COD ka metsing a litšila e ka fihlela litlhoko tsa ho tsoa ka mor'a kalafo ea adsorption. Khoebo ena e amohetse sephutheloana sa adsorbent le ts'ebetso ea Jiangsu Hapu Functional Materials Co.

Metsi a litšila a hlahisoang ts'ebetsong ea tlhahiso ea khoebo ea khatiso le ho daea, ka mor'a hore biochemical le filtration e fapa-fapaneng, COD ea litšila e ntse e phahame haholo ho feta litlhoko tsa ho tsoa 'me matla a mebala a phahame, kahoo ho hlokahala phekolo e eketsehileng. Metsi a litšila a lekoa ka lisebelisoa tse khethehileng tsa adsorbent tsa Hapu, 'me liphetho li bontša hore lintho tse sa senyeheng tse ka har'a metsi a litšila li ka aroloa ka boomo le metsi a litšila 'me metsi a litšila a adsorbed a ka finyella litekanyetso tsa ho tsoa.

Khoebo ea masela e ka hlahisa ~ 2500t metsi a litšila letsatsi le leng le le leng ts'ebetsong ea tlhahiso. Leano lena le bolela hore sekhahla sa tšebeliso ea metsi a litšila sa indasteri ea khatiso le ho daea se tlameha ho fihla ho 60%, 'me mokhoa o teng oa ho hloekisa metsi a litšila oa khoebo ena o na le COD ea metsi a mohatla o feteletseng oa biochemical mme e ke ke ea fihlela maemo a ho sebelisoa hape.

Ho ea ka litlhoko tsa tlhahiso ea khoebo, metsi a litšila a ka phekoloa ka ho sebelisa lisebelisoa tse khethehileng tsa adsorbent tsa Hapu hammoho le mokhoa oa adsorption ho finyella litlhoko tsa ho sebelisoa hape, tse ka rarollang mathata a ho hloekisa metsi a litšila tsa khoebo le ho fokotsa litšenyehelo. pheko ea ho ntša metsi a litšila le litšenyehelo tsa ho tlatsa metsi a macha, a nang le boleng bo hlakileng ba moruo.

Taba ea 'nete ea ts'ebeliso ea adsorbent bakeng sa khatiso le ho daea kalafo ea metsi a litšila

ts'ebeliso ea tšimo

Melemo ea mantlha ea V. Hapu

Mekhoa ea hona joale ea ho phekola metsi a litšila a dae e na le mefokolo ea eona, ka bobeli mabapi le phello ea kalafo le litšenyehelo tsa bona tsa ts'ebetso.

Mokhoa oa karohano ea li-membrane o na le mathata a tšilafalo ea lera le lera le theko e boima, khafetsa ea phetisetso le litšenyehelo tse phahameng tsa kalafo.

The go tlhoka mesola ea mokhoa oa ho ntsa ke tshebediso e kholo ea extractant, 'me karohano extractant ke ho feta ho le thata, theko e phahameng ka tone ea phekolo ea metsi, e ke ke ea e-ba palo e khōlō ea phekolo e tsoelang pele.

Mokhoa oa mahlaseli ha o e-so holile theknoloji, tšebeliso ea matla, matla a matla a tlase; ho phaella ho qoba liphello tse kotsi tsa mahlaseli 'meleng oa motho, empa hape ho hlokahala mehato e khethehileng ea tšireletso.

Mekhoa ea ho kopanya, ea oxidation le ea likokoana-hloko e ke ke ea finyella litlhoko tsa ho ntša hang-hang, 'me e ke ke ea lokolloa ka mokhoa o tsitsitseng.

Ka lehlakoreng le leng, mokhoa oa adsorption o ka tlosa ka katleho lintho tse phelang ho tloha metsing a litšila a dae ho ea ka tlaase ho tekanyo ea ho ntša metsi, e leng mokhoa oa moruo le o sebetsang oa ho phekola metsi a litšila a dae.

Melemo ea mokhoa oa adsorption e kenyelletsa tse latelang.

(1) Ho lumellana ho tsitsitseng le litekanyetso tsa mocheso, tse ka fokotsang ka katleho khatello ea ts'ireletso ea tikoloho ea khoebo.

(2) Etsa liteko ka lisampole tsa metsi a litšila a hlahisoang sebakeng sa marang-rang, ho rala mokhoa oa adsorption o ipapisitseng le theknoloji le liteko, le ho fihlela boemo bo holimo ba ho bapisa lipakeng tsa metsi a litšila le ts'ebetso.

(3) Thepa e lula sebakeng sa moruo, e na le sebopeho se kopaneng le matsete a tlase ho kaho ea sechaba le lisebelisoa; desorbent e sebelisoa ka makhetlo a 'maloa' me e teteaneng mohato ka mohato, ka tekanyo e phahameng ea tšebeliso ea moemeli le litšenyehelo tse tlaase tsa ho sebetsa.

(4) Likarolo tsa modular li ka etsoa ka mokhoa oa li-modules, tse ka fetoloang habonolo ho latela matla a tlhahiso 'me ho bonolo ho li kenya.

(5) Theknoloji e tsoetseng pele le e hōlileng tsebong, ha ho na tšilafalo ea bobeli, e nang le matla a matla a botekgeniki le phihlelo e ruileng ea likopo tsa boenjiniere.

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