【摘要】：通過(guò)堆肥發(fā)酵,研究了電解錳渣、廢糖蜜和甘蔗渣在一定配比下添加活性污泥、豬糞水、城市河湖污泥、樹(shù)林腐土、生物菌劑以及不添加微生物來(lái)源物對(duì)廢渣中重金屬化學(xué)形態(tài)和理化特性的影響。堆肥處理30 d監(jiān)控其物理特性,采用ICP法分析了6種重金屬元素總量,并利用Tessier五步連續(xù)浸取法對(duì)堆肥前后做重金屬的形態(tài)分析。結(jié)果表明:堆肥過(guò)程中系統(tǒng)溫度均高于環(huán)境溫度;6種條件下,堆肥體系的pH值均得到了顯著提高;堆肥可以降低電解錳渣態(tài)中重金屬的生物有效性。堆肥處理有利于降低電解錳渣利用中重金屬污染的風(fēng)險(xiǎn)。
[Abstract]:By compost fermentation, electrolytic manganese slag, molasses and bagasse were added to activated sludge, pig dung water, urban river and lake sludge, forest saproot under certain proportion. Effects of microbial agents and no microbial sources on the Chemical forms and Physicochemical Properties of heavy Metals in waste residue. The physical properties of compost were monitored for 30 days. The total contents of six heavy metals were analyzed by ICP method, and the speciation of heavy metals before and after composting were analyzed by Tessier five-step continuous leaching method. The results showed that the pH value of composting system was significantly increased when the system temperature was higher than that of environmental temperature, and the bioavailability of heavy metals in electrolytic manganese residue could be reduced by composting. Compost treatment can reduce the risk of heavy metal pollution in the utilization of electrolytic manganese slag.
【作者單位】： 中南民族大學(xué)資源與環(huán)境學(xué)院;
【基金】：國(guó)家科技支撐計(jì)劃項(xiàng)目(2015BAB01B03)
【分類(lèi)號(hào)】：X781.1
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本文編號(hào)：2150000