生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2014年
11期
1821-1825
,共5页
蒋永荣%刘可慧%麒麟%刘成良%李天煜%林金彪%王春锋%袁碟
蔣永榮%劉可慧%麒麟%劉成良%李天煜%林金彪%王春鋒%袁碟
장영영%류가혜%기린%류성량%리천욱%림금표%왕춘봉%원설
硫酸盐有机废水%厌氧处理%微量金属%颗粒污泥%生物活性
硫痠鹽有機廢水%厭氧處理%微量金屬%顆粒汙泥%生物活性
류산염유궤폐수%염양처리%미량금속%과립오니%생물활성
sulfate organic wastewater%anaerobic treatment%trace metal%granular sludge%biological activity
采用厌氧反应装置,接种取自 UASB 反应器的硫酸盐有机废水厌氧处理颗粒污泥,以人工配制的含硫酸盐有机废水(蔗糖提供有机物)为原水,分别添加不同质量浓度的微量金属(Fe2+、Co2+、Ni2+),通过间歇试验,研究了不同质量浓度的微量金属(Fe2+、Co2+、Ni2+)条件下,厌氧反应装置中 COD 和硫酸盐的去除率及产甲烷情况。试验结果表明,在 Fe2+质量浓度0~12 mg·L-1、Co2+质量浓度0~0.5 mg·L-1、Ni2+质量浓度0~0.6 mg·L-1范围内,厌氧颗粒污泥的COD去除率和产甲烷速率分别随Fe2+、Co2+、Ni2+浓度的增加而增高。在Fe2+质量浓度0~12 mg·L-1范围内,厌氧颗粒污泥对SO42-去除率随Fe2+浓度的增加略有增高,但在Co2+质量浓度0~0.5 mg·L-1、Ni2+质量浓度0~2.0 mg·L-1范围内,厌氧颗粒污泥的SO42-去除率分别随Co2+和Ni2+浓度的增加而降低。因此,在一定浓度范围内,Fe2+的投加能同时激活MPB和SRB,Co2+和Ni2+的投加能激活MPB但对SRB活性产生抑制作用,为硫酸盐有机废水厌氧处理提供一定的理论指导。
採用厭氧反應裝置,接種取自 UASB 反應器的硫痠鹽有機廢水厭氧處理顆粒汙泥,以人工配製的含硫痠鹽有機廢水(蔗糖提供有機物)為原水,分彆添加不同質量濃度的微量金屬(Fe2+、Co2+、Ni2+),通過間歇試驗,研究瞭不同質量濃度的微量金屬(Fe2+、Co2+、Ni2+)條件下,厭氧反應裝置中 COD 和硫痠鹽的去除率及產甲烷情況。試驗結果錶明,在 Fe2+質量濃度0~12 mg·L-1、Co2+質量濃度0~0.5 mg·L-1、Ni2+質量濃度0~0.6 mg·L-1範圍內,厭氧顆粒汙泥的COD去除率和產甲烷速率分彆隨Fe2+、Co2+、Ni2+濃度的增加而增高。在Fe2+質量濃度0~12 mg·L-1範圍內,厭氧顆粒汙泥對SO42-去除率隨Fe2+濃度的增加略有增高,但在Co2+質量濃度0~0.5 mg·L-1、Ni2+質量濃度0~2.0 mg·L-1範圍內,厭氧顆粒汙泥的SO42-去除率分彆隨Co2+和Ni2+濃度的增加而降低。因此,在一定濃度範圍內,Fe2+的投加能同時激活MPB和SRB,Co2+和Ni2+的投加能激活MPB但對SRB活性產生抑製作用,為硫痠鹽有機廢水厭氧處理提供一定的理論指導。
채용염양반응장치,접충취자 UASB 반응기적류산염유궤폐수염양처리과립오니,이인공배제적함류산염유궤폐수(자당제공유궤물)위원수,분별첨가불동질량농도적미량금속(Fe2+、Co2+、Ni2+),통과간헐시험,연구료불동질량농도적미량금속(Fe2+、Co2+、Ni2+)조건하,염양반응장치중 COD 화류산염적거제솔급산갑완정황。시험결과표명,재 Fe2+질량농도0~12 mg·L-1、Co2+질량농도0~0.5 mg·L-1、Ni2+질량농도0~0.6 mg·L-1범위내,염양과립오니적COD거제솔화산갑완속솔분별수Fe2+、Co2+、Ni2+농도적증가이증고。재Fe2+질량농도0~12 mg·L-1범위내,염양과립오니대SO42-거제솔수Fe2+농도적증가략유증고,단재Co2+질량농도0~0.5 mg·L-1、Ni2+질량농도0~2.0 mg·L-1범위내,염양과립오니적SO42-거제솔분별수Co2+화Ni2+농도적증가이강저。인차,재일정농도범위내,Fe2+적투가능동시격활MPB화SRB,Co2+화Ni2+적투가능격활MPB단대SRB활성산생억제작용,위류산염유궤폐수염양처리제공일정적이론지도。
Bach tests in anaerobic bioreactor were conducted to investigate the effects of trace metals (Fe2+, Co2+, Ni2+) on the removal efficiencies of chemical oxygen demand (COD) and sulfate along with methane production rate of anaerobic granular sludge. The artificial sulfate organic wastewater was the influent water with sucrose as the carbon source, and the seeding sludge was from a lab-scale running up-flow anaerobic sludge blanket (UASB). The results showed that both COD removal efficiency and methane production rate increased with increasing mass concentrations of trace metals (Fe2+0 to12 mg·L-1, Co2+0 to 0.5 mg·L-1, Ni2+0 to 0.6 mg·L-1, respectively). However, the sulfate removal efficiency showed downtrend with increasing mass concentrations of Co2+from 0 to 0.5 mg·L-1 and Ni2+from 0 to 2.0 mg·L-1, respectively. And it slightly increased with increasing mass concentration of Fe2+from 0 to12 mg·L-1. Thus, the addition of Fe2+ could activate the activity of methane production bacteria (MPB) and sulfate-reducing bacteria (SRB). However, the addition of Co2+ and Ni2+ have contrary effects which was realized by activation on MPB and inhibition on SRB, respectively. The results of this study provided a theoretical guidance for the treatment of sulfate organic wastewater.