Yadda za a auna salinity na najasa?

Yadda za a auna salinity na najasa abu ne mai matukar damuwa ga kowa da kowa. Babban sashin da ake amfani da shi don auna salinity na ruwa shine EC/w, wanda ke wakiltar tafiyar da ruwa. Ƙayyadaddun ƙayyadaddun ruwa zai iya gaya maka yawan gishiri a cikin ruwa a halin yanzu.

TDS (wanda aka bayyana a cikin mg/L ko ppm) a zahiri yana nufin adadin ions da ke akwai, ba aiki ba. Duk da haka, kamar yadda aka ambata a baya, ana amfani da ƙaddamarwa sau da yawa don auna adadin ions da ke ciki.

Mitar TDS suna auna ƙarfin aiki kuma suna canza wannan ƙimar zuwa karatu a mg/L ko ppm. Haɓakawa kuma hanya ce ta kaikaice ta auna salinity. Lokacin auna salinity, yawanci ana bayyana raka'a a cikin ppt. Wasu na'urorin haɓakawa sun zo an riga an saita su tare da zaɓi don auna gishiri idan ana so.

Duk da yake yana da wuya a fahimta, ana ɗaukar ruwan gishiri a matsayin mai sarrafa wutar lantarki mai kyau, wanda ke nufin cewa lokacin da kake ƙoƙarin kiyaye ingantaccen ilmin sunadarai don yanayin waje, karatun EC / w ya kamata ya zama babba. Lokacin da waɗannan karatun sun ragu sosai, yana iya zama lokacin da za a yi maganin ruwa.

Labari na gaba yayi nazari sosai akan gishiri da yadda ake auna shi daidai.

Menene salinity na ruwa?

Salinity yana nufin adadin gishirin da ya narkar da shi yadda ya kamata a cikin ruwa. Naúrar farko da ake amfani da ita don auna salinity na ruwa shine EC/w, wanda ke tsaye ga ƙarfin lantarki na ruwa. Duk da haka, auna salinity na ruwa tare da firikwensin motsi zai ba ku nau'in ma'auni daban-daban a mS/cm, wanda shine adadin millisiemens a kowace centimita na ruwa.

Siemens millimita ɗaya a cikin santimita yana daidai da 1,000 micro Siemens a kowace centimita, kuma sashin shine S/cm. Bayan ɗaukar wannan ma'auni, dubu ɗaya na micro-Siemens daidai yake da 1000 EC, ƙarfin wutar lantarki na ruwa. Hakanan ma'aunin EC 1000 yana daidai da sassa 640 a kowace miliyan, wanda shine sashin da ake amfani da shi don tantance salinity a cikin ruwan wanka. Karatun salinity don tafkin ruwan gishiri ya kamata ya zama 3,000 PPM, wanda ke nufin cewa millisiemens a kowace centimita ya kamata ya zama 4.6 mS/cm.

Yaya ake yin salinity?

Ana iya yin maganin salinity ta hanyoyi guda uku ciki har da salinity na farko, salinity na sakandare, da salinity na uku.

Salinity na farko shine hanyar da aka fi sani da ita, wanda ke faruwa ta hanyar hanyoyin halitta, kamar samuwar gishiri saboda ruwan sama na tsawon lokaci. Lokacin da aka yi ruwan sama, wasu gishirin da ke cikin ruwa suna ƙafewa daga ginshiƙin ruwa ko ƙasa. Wasu gishiri kuma na iya shiga kai tsaye cikin ruwan ƙasa ko ƙasa. Ruwa kadan kuma zai kwarara cikin koguna da rafuka daga karshe ya shiga cikin tekuna da tafkuna.

Dangane da salinity na biyu, irin wannan salinity yana faruwa ne lokacin da ruwa ya tashi, yawanci sakamakon cire ciyayi daga wani yanki.

Hakanan ana iya samun salinity ta hanyar salinity na uku, wanda ke faruwa lokacin da ake amfani da ruwa don aikin lambu da amfanin gona a kan zagayawa da yawa. A duk lokacin da aka shayar da amfanin gona, ruwa kadan yana ƙafewa, wanda ke nufin haɓaka sel. Idan aka sake yin amfani da ruwan akai-akai, gishiri a cikin amfanin gona zai iya girma sosai.

Kariya lokacin amfani damita aiki

1. Lokacin auna tsaftataccen ruwa ko ruwan ultrapure, don guje wa ɗimbin kimar da aka auna, ana ba da shawarar yin amfani da ramin da aka rufe don yin ma'aunin kwarara a cikin yanayin da aka rufe. Idan an yi amfani da beaker don ɗauka da aunawa, manyan kurakurai zasu faru.

2. Tun da ramuwa na zafin jiki yana ɗaukar ƙayyadaddun ma'aunin zafin jiki na 2%, auna ma'aunin ultra- da tsaftataccen ruwa ya kamata a aiwatar da shi ba tare da ramuwa da zafin jiki gwargwadon iyawa ba, kuma ya kamata a duba tebur bayan aunawa.

3. Dole ne a kiyaye wurin zama na filogi na lantarki daga danshi, kuma a sanya mitar a cikin busasshiyar wuri don guje wa ɗigogi ko kurakuran auna mitar saboda zubar da ɗigon ruwa ko danshi.

4. Na'urar aunawa wani bangare ne na ma'auni, wanda ba za a iya rarrabuwa ba, ba za a iya canza siffar da girman wutar lantarki ba, kuma ba za a iya tsaftace shi da acid mai karfi ko alkali ba, don kada ya canza electrode akai-akai kuma ya shafi daidaiton ma'aunin kayan aiki.

5. Domin tabbatar da daidaiton ma'auni, ya kamata a wanke na'urar sau biyu tare da ruwa mai tsabta (ko ruwa mai tsabta) kasa da 0.5uS / cm kafin amfani (dole ne a jika electrode black platinum a cikin ruwa mai tsabta kafin amfani da shi bayan ya bushe na wani lokaci), sannan a wanke tare da ruwan samfurin da aka gwada sau uku kafin aunawa.