Ucwaningo lwecala lokwelashwa kwamanzi amdaka embonini yokukhiqiza izinhlanzi ezisemathinini

1, Isizinda Sephrojekthi

I-Donghai Fisheries Co., Ltd., etholakala ePeru, iyibhizinisi lesimanje lokukhiqiza izinhlanzi ezikheniwe elinomthamo wokukhiqiza waminyaka yonke wamathani ayi-10000. Amanzi angcolile akhiqizwa ngesikhathi senqubo yawo yokukhiqiza anezici ezijwayelekile zemboni: ukukhishwa kwamanzi angcolile nsuku zonke kungaba ngamathani angama-800, okuqukethwe uwoyela kuphakeme njengo-350-400mg/L, kudlula kakhulu amazinga okukhishwa, futhi liqukethe inani elikhulu lamaprotheni, udoti wesilinganiso sezinhlanzi, kanye nezinto zokucubungula ezisele. Ukuhlushwa kwe-COD kuphakathi kuka-2500-3000mg/L isikhathi eside. Inqubo yendabuko "yegridi+umoya ogelezayo+i-biochemistry" ingasusa ukungcola okuthile, kodwa ukusebenza kahle kwenqubo yokuhlunga ingcindezi kuphansi, kanti okuqukethwe komswakama kwekhekhe lokuhlunga kuphakeme njengo-75%, okungagcini nje ngokuholela ekwandeni okukhulu kwezindleko zokwelashwa kodaka okulandelayo, kodwa futhi nokuqukethwe uwoyela odongeni kusashintshashintsha phakathi kuka-80-120mg/L, okwenza kube nzima ukufeza amazinga azinzile.

2, Izinselele Eziyinhloko Nezixazululo

Ubunzima ekuhlukaniseni uwoyela:

Amafutha asemanzini angcolile ezinhlanzi ezisemathinini akhona kokubili ezimweni ezihlanganisiwe nezihlanganisiwe, futhi izinqubo zendabuko zokuntanta emoyeni kunzima ukuziphula ngokuphelele. Ithimba lephrojekthi lethula i-umshini wokuhlunga wegumbi le-hydraulic olawulwa ngohlelo, ehlanganiswe nendwangu yokuhlunga ye-polypropylene engangeni mafutha, ukuze kufezwe ukugcinwa kwamafutha ngokuhlunga okunezigaba ezintathu:

Isigaba sangaphambi kokwelashwa:Amanzi angcolile aqale aphathwe ngesihlukanisi samafutha ukuze kususwe uwoyela ontantayo, bese kufakwa i-FeClⅢ coagulant (isilinganiso esingu-400mg/L) ukuze kuphazamiseke ukuzinza kwe-colloidal, kwakhiwe ama-floc anosayizi wezinhlayiya>50 μ m;

Isigaba sokucindezela isihlungi:Ngaphansi kwengcindezi yokudla engu-0.8 MPa, kwakheka ungqimba lwekhekhe lesihlungi oluguquguqukayo ebusweni bendwangu yesihlungi, olubamba amaconsi kawoyela anosayizi wezinhlayiya ezingaphezu kuka-1 μ m. Ngesikhathi esifanayo, isakhiwo esihlanganisiwe ebusweni bepuleti lesihlungi siqinisa ukubhekwa komshini kawoyela ohlanganisiwe;

Isigaba sokucindezela:Faka ingcindezi engu-1.2MPa ekhekheni lokuhlunga ngohlelo lwe-hydraulic, ukhiphe uwoyela futhi, ekugcineni wehlise umswakama wekhekhe lokuhlunga ube ngaphansi kuka-55% kanye nokuqukethwe uwoyela kube ngaphansi kuka-8%.

Ukuthuthukiswa kokusebenza kahle kokuhlukaniswa koketshezi oluqinile:

Uhlelo lwebhande lokuthutha oluzenzakalelayo olusekelayo (olune-bandwidth engu-800mm kanye nesivinini sokudlulisa esingu-0.5m/s) lufeza inqubo ephelele yokwenza ngokuzenzakalela kokuhlunga, ukulayisha, kanye nokuthuthwa kwengcindezi:

Ukuxhumana okuhlakaniphile:Ngemva kokuba umshini wokuhlunga uqede umjikelezo owodwa wokusebenza (cishe imizuzu engama-45), ipuleti lokuhlunga livuleka ngokuzenzakalelayo bese ikhekhe lokuhlunga lishelela phansi liye ebhandeni lokuhambisa ngamandla adonsela phansi;

Umklamo wokunganamatheli:Ubuso bebhande lokuhambisa buphathwa ngesembozo se-PTFE, esihlanganiswe nedivayisi yokufutha amanzi enomfutho ophezulu, ukuze kugwenywe ukudlulisa ukuvaleka okubangelwa ukunamathela kwekhekhe lokuhlunga;

Ukusetshenziswa kwezinsizakusebenza:Ikhekhe lokuhlunga elinomswakama ongu-55% lingasetshenziswa ngqo njengezinto zokusetshenziswa zokudla, futhi kulinganiselwa ukuthi lingakhiqiza cishe ama-yuan ayi-120000 emkhiqizweni ongemva kwalokho ngonyaka.

Umshini wokuhlunga wohlobo lwebhokisi:ifakwe uhlelo lokulawula lwe-PLC, ingakwazi ukulungisa ngokuzenzakalelayo ingcindezi yokuphakelwa kanye nesikhathi sokucindezela ngokuya ngekhwalithi yamanzi okungena. Idatha yangempela yokuhlola ikhombisa ukuthi ukusetshenziswa kukagesi kokwelapha ithani elilodwa lamanzi angcolile kungu-0.85 kWh kuphela, okungaphansi ngo-40% kunokucindezela kwesihlungi sepuleti nefreyimu yendabuko;

Ibhande lokuthutha:ixhunywe ngaphandle komthungo embobeni yokukhipha umshini wokuhlunga, isebenzisa ukwakheka kwe-modular, ingashintshwa ngokushesha izingxenye ezigugile, futhi umjikelezo wokulungisa welulelwe ezinyangeni eziyi-6.

3,Umphumela wokuqaliswa kanye nezinzuzo zomnothoIzinzuzo zemvelo:

Okuqukethwe uwoyela emgqonyeni wokungcola kwehle kusuka ku-120mg/L ngaphambi kokuvuselelwa kuya ku-12mg/L, ngesilinganiso sokususwa kwe-COD esingu-97% kanye nokwehla kwaminyaka yonke kwamathani angaba ngu-28 okukhishwa kukawoyela;

Umswakama wekhekhe lokuhlunga wehle ngo-20%, kanti inani lodaka oluthuthwa ngaphandle lehle lisuka kumathani angu-60 ngenyanga laya kumathani angu-22, okunciphisa izindleko zokuhamba cishe ngo-70%.

ukusebenza kwezomnotho:

Imali engenayo yonyaka evela ekusetshenzisweni kwezinsiza zekhekhe lokuhlunga ingu-120000 yuan, okususa u-60% wezindleko zokwehla kwenani lemishini yokucindezela izihlungi;

Izindleko ezihlanganisiwe zokusetshenziswa kukagesi kanye nemithi zehle ngo-35%, okuholele ekongeni imali yonyaka engaba ngu-250000 yuan ezindlekweni zokusebenza.

imiphumela yezenhlalo:

Ngemva kokuqaliswa kwale phrojekthi, ibhizinisi ladlula isitifiketi se-ISO 14001 sohlelo lokuphathwa kwemvelo, laba uphawu lokuvikelwa kwemvelo embonini yokucubungula imikhiqizo yasemanzini yendawo kanye nokukhuthaza ukuthuthukiswa kwezinga lokukhiqiza okuluhlaza kwesifunda.

4, Izibuyekezo zamakhasimende

Ngokwethula ikhambi elihlanganisiwe lomshini wokuhlunga wohlobo lwebhokisi kanye nebhande lokuhambisa, sesixazulule ngokuphelele inkinga yesikhathi eside yokwelashwa kwamanzi amdaka. Manje, asikwazi nje kuphela ukufeza ukukhishwa okuzinzile nokuvumelanayo, kodwa ikhekhe lokuhlunga lingasetshenziswa njengezinto zokusetshenziswa ukuze kudalwe imali eyengeziwe. Izinga lobuhlakani lalo mshini lidlula kakhulu okulindelwe, futhi izindleko zokusebenza nokugcinwa zincishisiwe cishe ngesigamu.

——Rene, uMqondisi Wokukhiqiza weDonghai Fisheries Co.,