铜业工程
銅業工程
동업공정
Copper Engineering
2015年
4期
32-34,57
,共4页
HDS底泥%石灰乳%矿山酸性水%分段法%综合利用
HDS底泥%石灰乳%礦山痠性水%分段法%綜閤利用
HDS저니%석회유%광산산성수%분단법%종합이용
HDS sediment%lime%acid mine water%segmentation method%utilization
与石灰乳相比，采用HDS底泥调节化学硫化技术除铁工艺pH，可以提高铜回收率和三价铁离子去除率；铜回收工艺，硫氢化钠用量少，且铜总回收率也相对较高；HDS工艺，虽然石灰乳用量偏大，但是从整个工艺来看，每升酸性水少用石灰乳5~6g，并且相同的铜上清液，添加HDS底泥比不添加要少用石灰乳1g多（约减少5%的石灰乳用量）。废水处理很少采用分段法，即用后段的底泥作为碱源调节前段的pH，降低石灰用量，来达到降低处理成本的目的。这样既减少石灰用量，又使底泥得到回用，带来了良好的经济效益。
與石灰乳相比，採用HDS底泥調節化學硫化技術除鐵工藝pH，可以提高銅迴收率和三價鐵離子去除率；銅迴收工藝，硫氫化鈉用量少，且銅總迴收率也相對較高；HDS工藝，雖然石灰乳用量偏大，但是從整箇工藝來看，每升痠性水少用石灰乳5~6g，併且相同的銅上清液，添加HDS底泥比不添加要少用石灰乳1g多（約減少5%的石灰乳用量）。廢水處理很少採用分段法，即用後段的底泥作為堿源調節前段的pH，降低石灰用量，來達到降低處理成本的目的。這樣既減少石灰用量，又使底泥得到迴用，帶來瞭良好的經濟效益。
여석회유상비，채용HDS저니조절화학류화기술제철공예pH，가이제고동회수솔화삼개철리자거제솔；동회수공예，류경화납용량소，차동총회수솔야상대교고；HDS공예，수연석회유용량편대，단시종정개공예래간，매승산성수소용석회유5~6g，병차상동적동상청액，첨가HDS저니비불첨가요소용석회유1g다（약감소5%적석회유용량）。폐수처리흔소채용분단법，즉용후단적저니작위감원조절전단적pH，강저석회용량，래체도강저처리성본적목적。저양기감소석회용량，우사저니득도회용，대래료량호적경제효익。
compared with the lime, the iron removal process which used HDS sediment adjusting application could increased the copper recovery rate and trivalent iron ions removal rate;, with small amount sodium hydrosulfide was used in the copper recovery process, and the general recovery rate of copper was relatively higher;In the HDS process, although large amount of lime was used, but based on the entire process, e less 5-6g acidic lime was used in each liter of water; and in the same copper supernatant, the lime consumption in HDS sediment added was 1g less than non-HDS sediment added (around 5%reduction of lime consumption). Segmentation method was seldom used wastewater treatment, which used end stage sediment to adjust the preceding pH, reduce the lime consumption, to achieve lower processing costs. This process could reduce the lime consumption, and the sediment could be reused, good economic benefits were achieved.
