ʻEkolu mau Kaʻina Leʻaleʻa ʻAla gula maʻamau

I ke Kaʻina Hana Leaching o nā mea, ma muli o nā ʻokoʻa o nā kuhikuhi kahe o nā mea i lei ʻia a me nā reagents leaching, hiki ke ʻike ʻia ʻekolu mau kaʻina hana leaching.

1. Leʻaleʻa hui pū

Ma ka hoʻoheheʻe ʻana i kēia manawa, kahe nā mea leached a me ka leaching reagents i ka ʻaoʻao like (Figure 1). Hiki i kēia ʻano hana ke hoʻohua mai i ka leachate me kahi maʻiʻo kiʻekiʻe o nā mea i hoʻopaʻa ʻia a koi ʻia ka hoʻohana haʻahaʻa o nā mea hoʻoheheʻe leaching. Eia naʻe, ua lohi kona māmā leaching. Pono ka manawa leaching lōʻihi no ka loaʻa ʻana o ka nui o ka leaching kiʻekiʻe.

2. Kea - Leaching o kēia manawa

I ka leaching kea o keia wa, ua hookaawale ia na mea leached me kekahi mau mahele o na mea hou leaching hou. Hoʻouna like ʻia ka leachate i loaʻa mai kēlā me kēia hana leaching no ka hana ʻana ma hope (Figure 2). ʻO ke keʻa - ʻo ka leaching o kēia manawa ke hōʻike nei i ka wikiwiki leaching wikiwiki a me ka manawa leaching pōkole, e hopena i ka nui o ka leaching kiʻekiʻe. Eia nō naʻe, ʻoi aku ka nui o ka leachate, me kahi kiʻekiʻe o nā reagents koena. ʻO ka hopena, ʻoi aku ka nui o ka hoʻohana ʻana i nā reagents, a ʻoi aku ka haʻahaʻa o ka ʻike o nā mea i manaʻo ʻia i ka leachate.

3. Counter - Leaching o kēia manawa

Ma ke kū'ē - ka leaching o kēia manawa, neʻe nā mea leached a me ka leaching reagents i nā ʻaoʻao ʻē aʻe. 'O ia ho'i, 'o nā mea i ho'opau 'ia ma hope o kekahi mau hana leaching e pili ana me ka leachate hou, a'o nā mea leached kumu e pili ana i ka leachate (Figure 3). Counter - hiki i ka leaching o kēia manawa ke hana i ka leachate me kahi kiʻekiʻe o nā mea i hoʻopaʻa ʻia a hoʻohana piha i nā koena reagents i loko o ka leachate, no laila e hōʻemi ai i ka ʻai ʻana i nā mea leaching. Eia naʻe, ʻoi aku ka haʻahaʻa o kona māmā leaching ma mua o ka leaching cross- current leaching. Pono ka nui o nā pae leaching no ka loaʻa ʻana o ka nui o ka leaching kiʻekiʻe.

Hiki i ka leaching tank percolation ke hoʻohana i nā kaʻina leaching co - current, cross - current, a i ʻole counter - current leaching. Hoʻohana maʻamau ka leaching puʻu a me ka leaching in - situ i ke kaʻina hana leaching cyclic i kēia manawa. Hoʻohana maʻamau ka leaching hoʻoulu ʻia i ke kaʻina hana leaching hui. Inā hoʻohana ʻia ka leaching cross - current a counter - current leaching, pono e hoʻohui ʻia nā hana hoʻokaʻawale wai paʻa ma waena o kēlā me kēia pae. ʻO ka leaching i hoʻoulu ʻia e hui pū ʻia, akā hiki ke hoʻohana ʻia ka leaching keʻa - o kēia manawa a i ʻole counter - o kēia manawa. Eia nō naʻe, pono ka hoʻokaʻawale ʻana i ka wai ma hope o kēlā me kēia hana leaching, e hana i ka hana paʻakikī a emi ʻole ka hoʻohana ʻana i ka hana. Hiki ke loaʻa pololei ka leaching percolation, ʻoiai ʻo ka slurry mai ka leaching hoʻoulu ʻia e pono e hoʻokaʻawale paʻa - wai no ka loaʻa ʻana o ka leachate a i ʻole dilute slurry i loaʻa kahi liʻiliʻi o nā ʻāpana oka no ka hana ʻana.