Kuongororwa kwekugona kushandiswa mukurapa mvura yakasviba yeindasitiri
1. Nhanganyaya huru
Kusvibiswa kwesimbi inorema zvinoreva kusvibiswa kwezvakatipoteredza kunokonzerwa nesimbi inorema kana zvinhu zvayo. Zvinowanzo kukonzerwa nezvinhu zvevanhu zvakaita sekuchera migodhi, kubudiswa kwegasi rinorema, kudiridza tsvina uye kushandiswa kwezvinhu zvinorema zvesimbi. Semuenzaniso, chirwere chemvura uye chirwere chekurwadziwa muJapan zvinokonzerwa nekusvibiswa kwemercury uye kusvibiswa kwecadmium zvakateerana. Mwero wekukuvadzwa kunoenderana nehuwandu uye chimiro chemakemikari chesimbi inorema munharaunda, chikafu uye zvipenyu. Kusvibiswa kwesimbi inorema kunonyanya kuoneka mukusvibiswa kwemvura, uye chikamu chayo chiri mumhepo nemarara akaoma.
Simbi dzinorema dzinoreva simbi dzine simba guruva (density) rakakura kupfuura 4 kana 5, uye kune mhando dzesimbi dzinosvika 45, dzakadai semhangura, lead, zinc, iron, diamond, nickel, vanadium, silicon, button, titanium, manganese, cadmium, mercury, tungsten, molybdenum, gold, Silver, nezvimwewo. Kunyangwe manganese, mhangura, zinc nedzimwe simbi dzinorema dziri zvinhu zvidiki zvinodiwa pamabasa ehupenyu, simbi zhinji dzakadai semercury, lead, cadmium, nezvimwewo hazvidiwi pamabasa ehupenyu, uye simbi dzese dzinorema kupfuura huwandu hwakati dzine chepfu mumuviri wemunhu.
Simbi dzinorema dzinowanzo kuwanikwa muzvisikwa muhuwandu hwechisikigo. Zvisinei, nekuda kwekuwedzera kwekushandiswa, kunyungudutswa, kugadziriswa uye kugadzirwa kwesimbi dzinorema nevanhu, simbi dzakawanda dzinorema dzakadai se lead, mercury, cadmium, cobalt, nezvimwewo zvinopinda mumhepo, mumvura, uye muvhu. Zvinokonzera kusvibiswa kwakakomba kwezvakatipoteredza. Simbi dzinorema mumamiriro akasiyana-siyana emakemikari kana makemikari dzinoramba dziripo, dzinoungana uye dzinofamba mushure mekupinda munharaunda kana ecosystem, zvichikonzera kukuvara. Semuenzaniso, simbi dzinorema dzinoburitswa nemvura yakasviba dzinogona kuungana mualgae nematope epasi kunyangwe huwandu hwacho huri hudiki, uye dzinonyungudutswa pamusoro pehove neshellfish, zvichikonzera huwandu hwechikafu, nokudaro zvichikonzera kusvibiswa. Semuenzaniso, zvirwere zvemvura muJapan zvinokonzerwa ne mercury mumvura yakasviba inoburitswa muindasitiri yekugadzira soda, iyo inoshandurwa kuita organic mercury kuburikidza nekuita kwebiological; mumwe muenzaniso ndekurwadziwa, kunokonzerwa ne cadmium inoburitswa muindasitiri yekunyungudutswa kwezinc neindasitiri ye cadmium electroplating. Ku. Mutobvu unoburitswa kubva muutsi hwemotokari unopinda munharaunda kuburikidza nekupararira kwemhepo uye mamwe maitiro, zvichikonzera kuwedzera kukuru kwehuwandu hwemutobvu uri pamusoro, zvichikonzera kutorwa kwemutobvu muvanhu vemazuva ano kanenge ka100 kupfuura kwevanhu vekare, uye zvichikuvadza hutano hwevanhu.
Chinorapa mvura ine simbi inorema inonzi macromolecular heavy metal, polymer yebrown-red liquid, inogona kushanda nekukurumidza nemaion akasiyana-siyana esimbi inorema mumvura yakasviba patembiricha yemumba, akadai seHg+, Cd2+, Cu2+, Pb2+, Mn2+, Ni2+, Zn2+, Cr3+, nezvimwewo. Chinopindura kugadzira munyu wakabatanidzwa usinganyungudike mumvura une mwero wekubvisa unopfuura 99%. Nzira yekurapa iri nyore uye iri nyore, mutengo wayo wakaderera, mhedzisiro yacho inoshamisa, huwandu hwetsvina hudiki, hwakagadzikana, hahuna chepfu, uye hapana kusvibiswa kwechipiri. Chinogona kushandiswa zvakanyanya mukurapa mvura yakasviba muindasitiri yemagetsi, migodhi nekunyungudutsa, indasitiri yekugadzira simbi, powerplant desulfurization nedzimwe indasitiri. pH inoenderana: 2-7.
2. Munda wekushandisa chigadzirwa
Semushonga unoshanda zvikuru wekubvisa maion esimbi inorema, ine mashandisirwo akasiyana-siyana. Inogona kushandiswa mumvura dzinenge dzose dzine maion esimbi inorema.
3. Shandisa nzira uye kuyerera kwakajairika kwemaitiro
1. Mashandisirwo azvo
1. Wedzera wobva wasanganisa
① Wedzera mushonga wekuchenesa mvura une simbi inorema yepolymer zvakananga mumvura ine simbi inorema ine maion, mhinduro yekukurumidza, nzira yakanakisisa ndeyekukurunga kwemaminitsi gumi ega ega;
②Kuti pave nehuwandu husina chokwadi hwesimbi inorema mumvura yakasviba, kuyedza kwemurabhoritari kunofanirwa kushandiswa kuona huwandu hwesimbi inorema yakawedzerwa.
③Kuti mvura yakasviba ine maion esimbi anorema ione ane kuwanda kwakasiyana, huwandu hwezvinhu zvakagadziriswa hunogona kudzorwa otomatiki neORP.
2. Midziyo yakajairika uye maitiro etekinoroji
1. Isa mvura zvakanaka 2. Kuti uwane PH=2-7, wedzera acid kana alkali kuburikidza nePH regulator 3. Dzora huwandu hwezvinhu zvakagadziriswa zvakawedzerwa kuburikidza neredox regulator 4. Flocculant (potassium aluminum sulfate) 5. Nguva yekugara kwetangi rekusanganisa 10min 76, nguva yekuchengetedza tangi rekubatanidza 10min 7, sloping plate sedimentation tank 8, sludge 9, reservoir 10, filter 121, final pH control ye drainage pool 12, discharge water
4. Kuongororwa kwezvibatsiro zvehupfumi
Tichitora mvura yakasviba inoputirwa nemagetsi semuenzaniso wemvura yakasviba yesimbi inorema, muindasitiri iyi chete, makambani ekushandisa anowana mabhenefiti makuru munharaunda uye mune zvehupfumi. Mvura yakasviba inoputirwa nemagetsi inonyanya kubva mumvura inosuka zvikamu zvepurasitiki uye huwandu hushoma hwemvura inoputirwa nemagetsi. Rudzi, zviri mukati uye chimiro chesimbi dzinorema mumvura yakasviba zvinosiyana zvakanyanya nemarudzi akasiyana ekugadzira, kunyanya dzine maion esimbi anorema akadai semhangura, chromium, zinc, cadmium, uye nickel. . Zvichienderana nehuwandu husina kukwana, kuburitswa kwemvura yakasviba pagore kubva muindasitiri yepurasitiki chete kunodarika matani emamiriyoni mazana mana.
Kurapa nemvura yakasviba nemagetsi kunozivikanwa senzira inoshanda uye yakakwana. Zvisinei, kubva pamhedzisiro yemakore mazhinji, nzira iyi yemakemikari ine matambudziko akadai sekushanda kusina kugadzikana, kushanda zvakanaka kwehupfumi uye kushaya simba kwezvakatipoteredza. Mushonga wekurapa mvura wesimbi inorema wepolymer wakagadziriswa zvakanaka. Dambudziko riri pamusoro apa.
4. Kuongororwa kwakazara kweprojekiti
1. Ine simba guru rekuderedza CrV, pH yekuderedza Cr” yakafara (2~6), uye mazhinji acho ane acid zvishoma.
Mvura yakasviba yakasanganiswa inogona kubvisa kudiwa kwekuwedzera acid.
2. Iine alkaline yakasimba, uye pH inogona kuwedzerwa panguva imwe chete yainowedzerwa. Kana pH yasvika 7.0, Cr (VI), Cr3+, Cu2+, Ni2+, Zn2+, Fe2+, nezvimwewo zvinogona kusvika padanho repamusoro, kureva kuti, simbi dzinorema dzinogona kudonha uku mutengo weVI uchidzikiswa. Mvura yakabatwa inosangana zvizere nechiyero chenyika chepasi rose chekuburitsa mvura.
3. Mutengo wakaderera. Kana tichienzanisa ne sodium sulfide yechinyakare, mutengo wekugadzirisa unoderedzwa neinopfuura RMB 0.1 patani.
4. Kumhanya kwekugadzirisa kuri kukurumidza, uye chirongwa chekuchengetedza zvakatipoteredza chinoshanda zvikuru. Mvura iri nyore kugadzika, inova nekukurumidza kaviri kupfuura nzira ye lime. Mvura inonaya panguva imwe chete yeF-, P043 mumvura yakasviba.
5. Huwandu hwetsvina hudiki, hafu chete yenzira yechinyakare yekunaya kwemvura yemakemikari
6. Hapana kusvibiswa kwesimbi dzinorema kunoitika mushure mekurapwa, uye copper carbonate yechinyakare iri nyore kunyungudika;
7. Pasina kuvhara jira rekusefa, rinogona kugadziriswa nguva dzose
Kwakabva chinyorwa chino: Sina Aiwen akagovana ruzivo
Nguva yekutumira: Mbudzi-29-2021