Ehlabathini, yonke into ineengenelo zayo kunye neengozi zayo. Inkqubela phambili yoluntu kunye nokuphuculwa kwemigangatho yokuphila yabantu ngokungenakuphepheka kukhokelela ekungcolisweni kokusingqongileyo. Amanzi amdaka yenye yeengxaki ezinjalo. Ngophuhliso olukhawulezayo lwemizi-mveliso efana neekhemikhali zepetroli, amalaphu, ukwenza amaphepha, izibulali-zinambuzane, amayeza, isinyithi, kunye nemveliso yokutya, ukukhutshwa kwamanzi amdaka kunyuke kakhulu kwihlabathi liphela. Ngaphezu koko, amanzi amdaka adla ngokuba namanqanaba aphezulu, ubuthi obuphezulu, ityuwa ephezulu, kunye nemibala ephezulu, okwenza kube nzima ukuwacoca nokuwanyanga, okukhokelela ekungcolisweni kwamanzi kakhulu.
Ukuze bajongane nomthamo omkhulu wamanzi amdaka emizi-mveliso aveliswa mihla le, abantu basebenzise iindlela ezahlukeneyo, bedibanisa iindlela zomzimba, iikhemikhali kunye nebhayoloji, kunye nokusebenzisa amandla anjengombane, isandi, ukukhanya, kunye nemagnetism. Eli nqaku lishwankathela ukusetyenziswa "kombane" kwitekhnoloji yonyango lwamanzi nge-electrochemical ukujongana nale ngxaki.
Itekhnoloji yokunyanga amanzi nge-electrochemical ibhekisa kwinkqubo yokungcolisa ukungcola emanzini amdaka ngokusebenzisa ii-electrochemical reactions ezithile, iinkqubo ze-electrochemical, okanye iinkqubo zomzimba ngaphakathi kwe-electrochemical reactor ethile, phantsi kwempembelelo ye-electrodes okanye intsimi yombane esetyenzisiweyo. Iinkqubo ze-electrochemical kunye nezixhobo zilula kakhulu, zithatha indawo encinci, zineendleko zokusebenza eziphantsi kunye nokugcinwa, zithintela ngokufanelekileyo ungcoliseko lwesibini, zibonelela ngolawulo oluphezulu lwee-reactions, kwaye zilungele ukusebenza ngokuzenzekelayo kwemizi-mveliso, nto leyo ezifumana ilebheli yetekhnoloji "enobuhlobo nokusingqongileyo".
Iteknoloji yonyango lwamanzi nge-electrochemical ibandakanya iindlela ezahlukeneyo ezifana ne-electrocoagulation-electroflotation, i-electrodialysis, i-electroadsorption, i-electro-Fenton, kunye ne-electrocatalytic advanced oxidation. Ezi ndlela zahlukile kwaye nganye inezicelo zayo ezifanelekileyo kunye neendawo zayo.
I-Electrocoagulation-i-Electroflotation
I-Electrocoagulation, eneneni, yi-electroflotation, njengoko inkqubo yokujiya kwenzeka ngaxeshanye ne-flotation. Ke ngoko, inokubizwa ngokuba yi-"electrocoagulation-electroflotation."
Le ndlela ixhomekeke ekusetyenzisweni kwe-voltage yangaphandle yombane, evelisa ii-cations ezinyibilikayo kwi-anode. Ezi cations zinefuthe lokujiya kwi-colloidal pollution. Kwangaxeshanye, isixa esikhulu segesi ye-hydrogen siveliswa kwi-cathode phantsi kwempembelelo ye-voltage, enceda izinto ezijiyayo ukuba zinyuke ziye kumphezulu. Ngale ndlela, i-electrocoagulation ifezekisa ukwahlulwa kwezinto ezijiyayo kunye nokucocwa kwamanzi ngokusebenzisa i-anode coagulation kunye ne-cathode flotation.
Ukusebenzisa isinyithi njenge-anode enyibilikayo (ngesiqhelo i-aluminium okanye i-iron), ii-ion ze-Al3+ okanye ze-Fe3+ eziveliswa ngexesha le-electrolysis zisebenza njenge-electroactive coagulants. Ezi coagulants zisebenza ngokucinezela umaleko ophindwe kabini we-colloidal, ziwuphazamise, kwaye zidibanisa kwaye zibambe amasuntswana e-colloidal ngokusebenzisa:
Al -3e→ Al3+ okanye Fe -3e→ Fe3+
Al3+ + 3H2O → Al(OH)3 + 3H+ okanye 4Fe2+ + O2 + 2H2O → 4Fe3+ + 4OH-
Kwelinye icala, i-electroactive coagulant eyenziweyo i-M(OH)n ibizwa ngokuba yi-soluble polymeric hydroxo complexes kwaye isebenza njenge-flocculant ukuze ijije ngokukhawuleza nangokufanelekileyo ii-colloidal suspensions (amaconsi eoli amancinci kunye nokungcola koomatshini) emanzini amdaka ngelixa iwahlanganisa kwaye iwadibanisa ukuze enze ii-aggregates ezinkulu, ikhawulezisa inkqubo yokwahlula. Kwelinye icala, ii-colloids zicinezelwa phantsi kwempembelelo yee-electrolytes ezifana ne-aluminium okanye i-iron salts, nto leyo ekhokelela ekujijekeni ngesiphumo seCoulombic okanye ukufunxwa kwee-coagulants.
Nangona umsebenzi we-electrochemical (ubude bexesha) wee-electroactive coagulants yimizuzu embalwa nje, zichaphazela kakhulu amandla e-double layer, ngaloo ndlela zibangela imiphumo enamandla yokuxinana kwee-colloidal particles okanye ii-smilled particles. Ngenxa yoko, amandla azo okufunxa kunye nomsebenzi ziphezulu kakhulu kuneendlela zeekhemikhali ezibandakanya ukongezwa kwee-reagents zetyuwa ye-aluminium, kwaye zifuna ubungakanani obuncinci kwaye zineendleko eziphantsi. I-Electrocoagulation ayichaphazeleki ziimeko zokusingqongileyo, ubushushu bamanzi, okanye ukungcola kwezinto eziphilayo, kwaye ayihambelani neempendulo ezingezizo kunye neetyuwa ze-aluminium kunye nee-hydroxide zamanzi. Ke ngoko, inoluhlu olubanzi lwe-pH yokunyanga amanzi amdaka.
Ukongeza, ukukhululwa kwamaqamza amancinci kumphezulu we-cathode kukhawulezisa ukungqubana kunye nokwahlukana kwee-colloids. I-electro-oxidation ethe ngqo kumphezulu we-anode kunye ne-electro-oxidation engathanga ngqo ye-Cl- into active chlorine zinamandla amakhulu okuxilisa kwizinto eziphilayo ezinyibilikayo kunye nezinto ezingaphiliyo emanzini. I-hydrogen esandul’ ukuveliswa kwi-cathode kunye ne-oxygen evela kwi-anode zinamandla amakhulu okuxilisa.
Ngenxa yoko, iinkqubo zeekhemikhali ezenzeka ngaphakathi kwi-electrochemical reactor ziyinkimbinkimbi kakhulu. Kwi-reactor, iinkqubo ze-electrocoagulation, i-electroflotation, kunye ne-electrooxidation zonke zenzeka ngaxeshanye, ziguqula kwaye zisuse ngokufanelekileyo zombini ii-colloids ezinyibilikisiweyo kunye nongcoliseko oluxhonyiweyo emanzini ngokujiya, ukujiya, kunye nokujiya.
Ubonelelo lwamandla lwe-DC lwe-Xingtongli GKD45-2000CVC Electrochemical
Iimbonakalo:
1. Igalelo le-AC 415V 3 Isigaba
2. Ukupholisa umoya ngokunyanzelwa
3. Ngomsebenzi wokunyusela i-ramp up
4. Imitha yeyure ye-amper kunye nerelay yexesha
5. Ulawulo olukude oluneentambo zolawulo zemitha ezingama-20
Imifanekiso yemveliso:
Ixesha lokuthumela: Sep-08-2023
