Feasibility ongororo yekushandiswa muindasitiri yetsvina kurapwa
1. Sumo inokosha
Heavy metal pollution inoreva kusvibiswa kwezvakatipoteredza kunokonzerwa nesimbi inorema kana makomboni ayo. Inonyanya kukonzerwa nezvinhu zvevanhu zvakadai semigodhi, kurasa gasi remarara, kudiridza kwesuweji uye kushandiswa kwezvinhu zvinorema esimbi. Semuenzaniso, chirwere chemamiriro ekunze emvura uye chirwere chemarwadzo muJapan chinokonzerwa nekusvibiswa kwemercury uye kusvibiswa kwecadmium zvakateerana. Huyero hwekukuvadza hunoenderana nekumisikidzwa uye chimiro chemakemikari emasimbi anorema munzvimbo, chikafu uye zvipenyu. Heavy metal kusvibiswa kunonyanya kuratidzwa mukusvibiswa kwemvura, uye chikamu chayo chiri mumhepo uye tsvina yakasimba.
Heavy metals inoreva simbi dzine giravhiti chaiyo (density) yakakura kudarika 4 kana 5, uye kune marudzi angangosvika makumi mana neshanu emasimbi akadai semhangura, lead, zinc, iron, diamond, nickel, vanadium, silicon, bhatani, titanium, manganese. , cadmium, mercury, tungsten, molybdenum, goridhe, Silver, etc. Kunyange manganese, mhangura, zingi uye mamwe masimbi anorema ari trace elements inodiwa pamabasa ehupenyu, mazhinji emasimbi anorema senge mecury, lead, cadmium, nezvimwe. zvinodikanwa pamabasa ehupenyu, uye ese anorema masimbi pamusoro peimwe concentration ane chepfu kumuviri wemunhu.
Heavy metals anowanzo kuvepo mune zvakasikwa mukudzika kwechisikigo. Zvisineyi, nekuda kwekuwedzera kuri kuita kushandiswa, kunyungudutsa, kugadzira uye kugadzirwa kwesimbi dzinorema nevanhu, simbi zhinji dzinorema dzakadai se lead, mecury, cadmium, cobalt, nezvimwe zvinopinda mumhepo, mvura, nevhu. Kukonzera kusvibiswa kwakakomba kwezvakatipoteredza. Masimbi anorema munzvimbo dzakasiyana siyana dzemakemikari kana mafomu emakemikari anoenderera, kuungana uye kutama mushure mekupinda nharaunda kana ecosystem, zvichikonzera kukuvadza. Semuyenzaniso, simbi inorema inoburitswa nemvura yetsvina inogona kuungana mualgae nepasi madhaka kunyangwe ikanyunguduka iri diki, uye inoshambadzirwa pamusoro pehove nehove, zvichikonzera kusungirirwa kwechikafu, zvichikonzera kusvibiswa. Semuenzaniso, zvirwere zvemvura muJapan zvinokonzerwa ne mercury mumvura yakasvibiswa inobudiswa kubva kune caustic soda kugadzira indasitiri, iyo inoshandurwa kuva organic mercury kuburikidza nehupenyu hwehupenyu; mumwe muenzaniso marwadzo, ayo anokonzerwa necadmium yakabudiswa kubva kune zinc smelting industry uye cadmium electroplating industry. To. Lead inoburitswa kubva mupombi yemotokari inopinda munharaunda kuburikidza nekupararira kwemuchadenga uye mamwe maitiro, zvichikonzera kuwedzera kukuru kweiyo ikozvino pamusoro peiyo lead lead, zvichikonzera kutorwa kwemutobvu muvanhu vemazuva ano zvakapetwa ka100 kupfuura izvo zvevanhu vekare, uye kukuvadza hutano hwevanhu. .
Macromolecular heavy metal water treatment agent, brown-red liquid polymer, inogona kukurumidza kupindirana neayoni dzakasiyana-siyana dzesimbi inorema mumvura yetsvina patembiricha yekamuri, senge Hg+, Cd2+, Cu2+, Pb2+, Mn2+, Ni2+, Zn2+, Cr3+, etc. Inopindura kugadzira mvura-isina kunyungudika yakasanganiswa munyu ine chiyero chekubvisa chinodarika 99%. Nzira yekurapa iri nyore uye iri nyore, mutengo wakaderera, mhedzisiro yacho inoshamisa, huwandu hwematope hudiki, hwakagadzikana, husina chepfu, uye hapana chechipiri kusvibiswa. Inogona kushandiswa zvakanyanya mukugadziriswa kwemvura yetsvina muindasitiri yemagetsi, migodhi nekunyungudusa, indasitiri yekugadzira simbi, dhizaini desulfurization uye mamwe maindasitiri. Inoshanda pH renji: 2-7.
2. Chigadzirwa chekushandisa munda
Seyakanyatsoshanda heavy metal ion remover, ine huwandu hwakawanda hwekushandisa. Inogona kushandiswa kune inenge yese tsvina yemvura ine heavy metal ions.
3. Shandisa nzira uye yakajairika nzira inoyerera
1. Mashandisiro
1. Wedzera uye simbisa
① Wedzera iyo polymer inorema simbi yekuchenesa mvura mumiririri zvakananga kune inorema simbi ion-ine tsvina yemvura, pakarepo kuita, nzira yakanakisa ndeyekumutsa yega gumi-nguva;
②Nekuda kwekusagadzikana kweheavy metal kudzika mumvura yetsvina, kuyedza murabhoritari kunofanirwa kushandiswa kuona huwandu hwesimbi inorema yakawedzerwa.
③Pakugadziriswa kwemvura yetsvina ine heavy metal ions ine huwandu hwakasiyana, huwandu hwezvinhu zvakawedzerwa zvinogona kudzorwa otomatiki neORP.
2. Yakajairika midziyo uye tekinoroji maitiro
1. Pretreat mvura 2. Kuti uwane PH = 2-7, wedzera asidi kana alkali kuburikidza nePH regulator 3. Dzora huwandu hwezvinhu zvakasvibirira zvinowedzera kuburikidza ne redox regulator 4. Flocculant (potassium aluminium sulfate) 5. Nguva yekugara yetangi rinokurudzira 10min 76, nguva yekuchengetedza yeagglomeration tank 10min 7, sloping plate sedimentation tank 8, sludge 9, reservoir 10, sefa 121, yekupedzisira pH yekudzora dziva 12, kubudisa mvura.
4. Kuongororwa kwehupfumi hwehupfumi
Kutora electroplating tsvina yemvura seyakajairwa inorema simbi tsvina semuenzaniso, muindastiri iyi chete, makambani ekushandisa anowana mabhenefiti makuru emagariro nehupfumi. Electroplating wastewater inonyanya kuuya kubva mumvura yekugezesa yeplating parts uye shoma shoma ye process tsvina yemvura. Rudzi, zvirimo uye chimiro chesimbi inorema mumvura yetsvina inosiyana zvakanyanya nemhando dzakasiyana dzekugadzira, kunyanya dzine heavy metal ions semhangura, chromium, zinc, cadmium, uye nickel. . Maererano nehuwandu husina kukwana, kubuda kwegore negore kwemvura yakasviba kubva muindasitiri ye electroplating chete kunodarika mamiriyoni mazana mana ematani.
Kemikari kurapwa kwe electroplating tsvina yemvura inozivikanwa senzira inoshanda uye yakakwana. Zvisinei, tichitarisa kubva pamigumisiro yemakore akawanda, nzira yemakemikari ine matambudziko akadai sekushanda kusina kugadzikana, kubudirira kwehupfumi uye hurombo hwezvakatipoteredza. Iyo polymer inorema simbi yekurapa mvura mumiriri inogadziriswa zvakanyanya. Dambudziko riri pamusoro.
4. Kuongorora kwakakwana kweprojekti
1. Iine simba rakasimba rekudzikisa kuCrV, pH range yekudzikisa Cr "yakafara (2 ~ 6), uye vazhinji vavo vane acidic zvishoma.
Mvura yakasanganiswa yakasanganiswa inogona kubvisa kudiwa kwekuwedzera asidi.
2. Yakasimba alkaline, uye pH inokosha inogona kuwedzerwa panguva imwechete iyo yakawedzerwa. Kana iyo pH inosvika 7.0, Cr (VI), Cr3+, Cu2+, Ni2+, Zn2+, Fe2+, nezvimwewo inogona kusvika pachiyero, kureva kuti, simbi inorema inogona kuderedzwa ichideredza mutengo weVI. Mvura yakacheneswa inosangana zvizere nenyika yekutanga-class discharge standard
3. Mutengo wakaderera. Kuenzaniswa neyakajairwa sodium sulfide, mutengo wekugadzirisa unoderedzwa neinopfuura RMB 0.1 patani.
4. Kukurumidza kugadzirisa kunokurumidza, uye chirongwa chekuchengetedza kwezvakatipoteredza chinoshanda zvikuru. Kunaya kuri nyore kugadzirisa, iyo inomhanya zvakapetwa kaviri senzira ye lime. Kunaya panguva imwe chete yeF-, P043 mumvura yetsvina
5. Kuwanda kwedhaka idiki, hafu chete yemaitiro echinyakare kemikari yekunaya
6. Hapana chechipiri kusvibiswa kwesimbi inorema mushure mekurapwa, uye zvechinyakare copper carbonate zviri nyore kuita hydrolyze;
7. Pasina kuvhara jira resefa, rinogona kugadziriswa nguva dzose
Kwakabva chinyorwa ichi: Sina Aiwen akagovera ruzivo
Nguva yekutumira: Nov-29-2021