Kodi kuyeza mchere wa zimbudzi?

Momwe kuyeza mchere wa zimbudzi ndi nkhani yodetsa nkhawa kwambiri kwa aliyense. Chigawo chachikulu chomwe chimagwiritsidwa ntchito poyeza kuchuluka kwa madzi amchere ndi EC/w, chomwe chimayimira kayendedwe ka madzi. Kuzindikira madutsidwe a madzi angakuuzeni kuchuluka kwa mchere panopa m'madzi.

TDS (yofotokozedwa mu mg/L kapena ppm) kwenikweni imatanthawuza kuchuluka kwa ayoni omwe alipo, osati conductivity. Komabe, monga tanenera kale, conductivity nthawi zambiri imagwiritsidwa ntchito poyesa kuchuluka kwa ma ion omwe alipo.

Mamita a TDS amayezera kusinthasintha ndikusintha mtengowu kukhala wowerengera mu mg/L kapena ppm. Conductivity ndi njira yosalunjika yoyezera mchere. Poyezera mchere, mayunitsi nthawi zambiri amawonetsedwa mu ppt. Zida zina zama conductivity zimabwera zitakonzedweratu ndi mwayi woyesa mchere ngati mukufuna.

Ngakhale zingakhale zovuta kumvetsa, madzi amchere amaonedwa kuti ndi oyendetsa bwino magetsi, zomwe zikutanthauza kuti pamene mukuyesera kusunga chemistry yolondola kwa malo akunja, mawerengedwe anu a EC / w ayenera kukhala apamwamba. Mawerengedwewa akatsika kwambiri, ingakhale nthawi yothira madzi.

Nkhani yotsatirayi ikufotokoza mozama za mchere ndi mmene tingawuyezere bwino.

Kodi mchere wamadzi ndi chiyani?

Mchere umatanthawuza kuchuluka kwa mchere womwe wasungunuka bwino m'madzi. Chigawo choyambirira chomwe chimagwiritsidwa ntchito kuyeza kuchuluka kwa madzi amchere ndi EC/w, chomwe chimayimira mayendedwe amagetsi amadzi. Komabe, kuyeza kuchuluka kwa mchere wamadzi ndi sensor conductivity kumakupatsani muyeso wosiyana mu mS/cm, womwe ndi kuchuluka kwa millisiemens pa centimita imodzi yamadzi.

Millimeter imodzi Siemens pa centimita ikufanana ndi 1,000 yaying'ono Siemens pa centimita, ndipo unit ndi S/cm. Mutatenga muyeso uwu, gawo limodzi mwa magawo chikwi chimodzi mwa ma micro-Siemens akufanana ndi 1000 EC, mphamvu yamagetsi yamadzi. Muyeso wa 1000 EC ndiwofanananso ndi magawo 640 pa miliyoni, womwe ndi gawo lomwe limagwiritsidwa ntchito kudziwa kuchuluka kwa mchere m'madzi osambira. Kuwerengera mchere padziwe la madzi amchere kuyenera kukhala 3,000 PPM, kutanthauza kuti mamilisiemens pa centimita yowerengera akhale 4.6 mS/cm.

Kodi mchere umapangidwa bwanji?

Chithandizo cha mchere chitha kuchitika kudzera mu njira zitatu kuphatikiza mchere woyambira, mchere wachiwiri, ndi mchere wapamwamba.

Salinity yoyambirira ndiyo njira yodziwika bwino, yomwe imachitika mwachilengedwe, monga kupanga mchere chifukwa cha mvula kwa nthawi yayitali. Mvula ikagwa, mchere wina wa m’madzi umasanduka nthunzi kuchokera m’mbali mwa madzi kapena m’nthaka. Mchere wina umadutsanso m’madzi apansi kapena m’nthaka. Madzi ochepa amathanso kulowa m'mitsinje ndi mitsinje ndipo pamapeto pake m'nyanja ndi m'nyanja.

Ponena za mchere wachiwiri, mchere woterewu umapezeka pamene madzi akukwera, kawirikawiri chifukwa cha kuchotsedwa kwa zomera kudera linalake.

Mchere ukhoza kupezekanso kudzera mu mchere wapamwamba, womwe umapezeka madzi akagwiritsidwa ntchito m'minda ndi kubzala mbewu mozungulira kangapo. Nthawi zonse mbewu ikathiriridwa madzi pang'ono amasanduka nthunzi, kutanthauza kuchuluka kwa mchere. Ngati madziwo agwiritsidwanso ntchito pafupipafupi, mchere ukhoza kukhala wochuluka kwambiri.

Kusamala mukamagwiritsa ntchitoconductivity mita

1. Poyezera madzi oyera kapena madzi a ultrapure, kuti mupewe kutengeka kwa mtengo woyezedwa, tikulimbikitsidwa kugwiritsa ntchito groove yosindikizidwa kuti mupange kuyeza kwamadzi mu malo osindikizidwa. Ngati beaker imagwiritsidwa ntchito poyesa ndi kuyeza, zolakwika zazikulu zimachitika.

2. Popeza chiwongoladzanja cha kutentha chimagwiritsa ntchito kutentha kwapakati pa 2%, kuyeza kwa madzi ochulukirapo komanso oyeretsedwa kwambiri kuyenera kuchitidwa popanda malipiro a kutentha momwe zingathere, ndipo tebulo liyenera kufufuzidwa pambuyo pa kuyeza.

3. Mpando wa pulagi wa electrode uyenera kutetezedwa kwathunthu ku chinyezi, ndipo mita iyenera kuyikidwa pamalo owuma kuti asatayike kapena kuyeza zolakwika za mita chifukwa cha kuphulika kwa madontho amadzi kapena chinyezi.

4. Electrode yoyezera ndi gawo lolondola, lomwe silingathe kupatulidwa, mawonekedwe ndi kukula kwa electrode sizingasinthidwe, ndipo sangathe kutsukidwa ndi asidi amphamvu kapena alkali, kuti asasinthe electrode nthawi zonse ndikukhudza kulondola kwa kuyeza kwa chida.

5. Pofuna kutsimikizira kulondola kwa kuyeza kwake, electrode iyenera kutsukidwa kawiri ndi madzi osungunuka (kapena madzi osungunuka) osachepera 0.5uS / cm musanayambe kugwiritsa ntchito (platinum black electrode iyenera kulowetsedwa m'madzi osungunuka musanagwiritse ntchito itatha kuuma kwa nthawi), Kenaka yambani ndi madzi oyesedwa oyesedwa katatu musanayese.