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柠檬酸废水

柠檬酸废水的相关文献在1989年到2021年内共计103篇,主要集中在废物处理与综合利用、环境污染及其防治、化学工业 等领域,其中期刊论文67篇、会议论文9篇、专利文献235769篇;相关期刊43种,包括中国沼气、安徽农业科学、广东化工等; 相关会议8种,包括第七届全国研究生生物质能研讨会、2013非粮生物质能源年会——燃料分会、2012氨基酸、有机酸产业发展论坛等;柠檬酸废水的相关文献由261位作者贡献,包括刘锋、白志辉、蒋京东等。

柠檬酸废水—发文量

期刊论文>

论文:67 占比:0.03%

会议论文>

论文:9 占比:0.00%

专利文献>

论文:235769 占比:99.97%

总计:235845篇

柠檬酸废水—发文趋势图

柠檬酸废水

-研究学者

  • 刘锋
  • 白志辉
  • 蒋京东
  • 马三剑
  • 臧立华
  • 吴建华
  • 李昌涛
  • 王栋
  • 冯俊强
  • 孙福新
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王瑛; 罗鹏; 刘林
    • 摘要: [目的]探究柠檬酸废水施加对植物镉吸收效率的影响.[方法]在植物生长过程中施加柠檬酸废水,使用Tessier五步连续提取法检测土壤中镉形态的变化情况.[结果]添加柠檬酸废水能够提高植物对总镉的吸收,并且吸收效率随着施加柠檬酸废水浓度的升高及试验时间的延长而升高.与总镉吸收情况不同的是75%的柠檬酸废水浓度对可交换态镉的吸收效率最高.在整个试验周期中,土壤中可交换态镉在总镉中的占比都有所提升,其中75%的柠檬酸废水处理下可交换态镉在总镉中的占比提升最明显;残渣态镉及碳酸盐结合态在总镉中的比例则出现了逐渐下降的趋势;而铁锰氧化态和有机态的占比在试验周期内没有明显变化.[结论]随着柠檬酸废水的施加,残渣态镉和碳酸盐结合态镉有向可交换态镉转化的趋势.其中,高浓度柠檬酸废水(如75%与100%)转化趋势比低浓度柠檬酸废水及去离子水更明显.
    • 孙科; 王萌
    • 摘要: 通过初始pH值、Fe2+添加量、质量分数为30%的H2O2溶液添加量和反应时间等条件的单因素影响实验及响应面实验,优化了电Fenton法处理混菌发酵柠檬酸废水的工艺.得到了优化后的处理工艺:初始pH值为3.6,Fe2+添加量为245 mg/mL,H2O2添加量为1.1 mg/mL,反应时间为145 min.在此优化工艺条件下,化学需氧量(COD)去除率达96.67%.本研究建立的方法可反映各种因素对混菌发酵柠檬酸废水的COD去除率的影响.
    • 李靖; 杜雯倩; 蒋昌旺; 施万胜; 沈晓春; 阮文权
    • 摘要: 某柠檬酸废水采用EGSB-UASB-氧化沟—臭氧脱色—曝气生物滤池(BAF)工艺.EGSB和UASB有机负荷分别为14.3 kgCOD/(m3 ·d)和7.2 kgCOD/(m3·d)时,COD去除率分别为86%和82%,出水COD分别为1 500 mg/L和650 mg/L,VFA分别为130±50 mg/L和50±25mg/L,两级厌氧串联可以将COD降到较低的水平.氧化沟有机负荷为0.52 kgCOD/(m3·d),二沉池的出水COD在65 mg/L以下.臭氧接触池可以将色度从70降到21,BAF出水COD小于50mg/L,出水指标达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)-级A标准.
    • 王建辉; 王璐
    • 摘要: 由于我国柠檬酸的大量生产加工,其废水已经对环境造成了一定程度的污染.目前在工业上采用了很多物理、化学和生物法对其进行降解处理,但效果不尽相同.简单阐述了几种针对柠檬酸废水的厌氧生物处理技术和他们在处理中的明显成效,对不同方法的原理和工艺流程进行了比较,分析了厌氧消化在如柠檬酸废水这样的高质量浓度有机废水处理领域的现状及前景.%Due to the large amount of citric acid production and processing in China,the waste water has caused a certain degree of pollution to the environment.At present,many physical,chemical and biological methods have been used in the industry to make degradation treatment to them,but the effects are not the same.In this article,several anaerobic biological treatment technology for citric acid waste water and their significant effects in the treatment processes are briefly described the principles and processes follow different methods are compared to analyze the current situation and prospect of anaerobic digestion in high concentration organic waste water treatment such as citric acid waste water.
    • 李鹏玮; 张艳萍
    • 摘要: 以柠檬酸生产废水二级厌氧出水为处理对象进行了厌氧消化处理实验,分别从COD、产气量、挥发性脂肪酸三个方面研究了微量元素Co对柠檬酸废水产甲烷的影响.结果表明:在72 h时实验处理结果基本稳定,当Co2+浓度为0.5 mg/L时,COD的去除率达到64%,产气效果最好;日产气量最高达到105 mL, 其中甲烷含量约为56%,单位产甲烷速率为4 L CH4/kg COD,不同浓度的投加量,对柠檬酸废水产气具有不同的影响.
    • 曾涛涛; 廖伟; 谢水波; 荣丽杉; 李仕友; 蒋小梅; 马华龙
    • 摘要: To clarify the performance of functional microorganisms involved in biological citric acid wastewater treatment systems, bacterial community structure of anaerobic granular sludge was investigated in an internal circulation ( IC) anaerobic reactor treating citric acid industry wastewater. Microstructure observation was carried out by environmental scanning electron microscope ( ESEM ) , and the microbial diversity and microfloras were analyzed by high⁃throughput sequencing. Particle size distribution results showed that the most particles’ diameters ranged from 1.0 mm to 4. 0 mm ( accounted for 74. 4%) . ESEM results showed that spherical bacteria were the dominant microorganisms in granular sludge. The total dataset comprised 8 397 high quality sequences, which could be subdivided into 873 operational taxonomic units. A library coverage of 0. 936 implied that the granular sludge exhibited a high microbial diversity and abundance. The Shannon index, ACE index and Chao1 index were 4.376, 3 415.51 and 2 246. 51, respectively. Genus classification revealed that there were four typical bacterial groups:hydrolytic fermentative bacteria for organic matter degradation were closely related to Paludibacter, Parabacteroides, Erysipelotrichaceae, Clostridium, Phascolarctobacterium, Aminobacterium, Saccharofermentans and Alkaliflexus, which accounted 24. 93% of the bulk bacterial; H2⁃producing and acetogenic bacteria were correlated with Petrimonas and Syntrophomonas, which accounted for 34. 89%; methanogens of Methanosaeta accounted 3. 44%;and the microflora groups of Levilinea, Longilinea and Thermovirga could be capable of tolerating toxic industrial wastewater, accounting for 14.62% instead.%为揭示柠檬酸废水生物处理过程中功能菌群作用机制,以柠檬酸工业废水内循环厌氧反应塔( IC)中厌氧颗粒污泥为研究对象,统计颗粒粒径分布,通过环境扫描电子显微镜( ESEM)观察颗粒微观形态结构,利用高通量测序技术分析微生物多样性及菌群特征.结果发现,粒径在1.0~4.0 mm的颗粒所占比例最多,为74.4%.ESEM显示微生物分布以球形细菌为主.高通量测序得到8397条有效序列,可划分操作分类单元(OTU)873个,Alpha多样性指数显示样品文库覆盖率0.936,Shannon指数为4.376,而ACE指数与Chao1指数分别为3415.51与2246.51,反映颗粒污泥中微生物种类与数量均较多.微生物菌群主要包括4大类,分别为可降解有机物的水解发酵菌群Paludibacter、Parabacteroides、Erysipelotrichaceae、Clostridium、Phascolarctobacterium、Aminobacterium、Saccharofermentans与Alkaliflexus(所占比例之和为24.93%);产氢产乙酸菌群Petrimonas与Syntrophomonas(所占比例之和为34.89%);产甲烷菌Methanosaeta(3.44%)及可耐受工业废水毒害的微生物菌群Levilinea、Longilinea与Thermovirga(所占比例之和为14.62%).
    • 叶友胜; 赵慎强
    • 摘要: Since secondary bio-treated citric acid wastewater is characterized by high colority and difficult biochemi-cal degradation,the combined process,catalytic ozonation-biological aerated filter (BAF),has been used for its advanced treatment. The results show that the combined process could achieve the goals of wastewater decoloration and organic substance degradation. Under the following conditions:catalytic ozonation reaction time is 30 min ,ozone dosage 22.5 mg/L,BAF gas-water ratio 3∶1,and hydraulic retention time 3 h,the effluent COD can be reduced to lower than 60 mg/L,and effluent colority is kept at 10-15 times. The treated effluent reaches the standard specified in“Reclaimed Utilization of Urban Sewage-Water Quality for Industrial Use”(GB/T 19923—2005).%针对柠檬酸生产废水二级生化出水色度高、难生化降解的特点,采用催化臭氧化-曝气生物滤池组合工艺对其进行深度处理。结果表明,该组合工艺可实现废水脱色和降解有机物的目的。当催化臭氧化接触氧化时间为30 min,臭氧投加量为22.5 mg/L;BAF气水比为3∶1,水力停留时间为3 h时,出水COD降至60 mg/L以下,色度维持在10~15倍,处理出水达到《城市污水再生利用工业用水水质》(GB/T 19923—2005)的标准。
    • 迟建国; 张强; 李昌涛; 王加宁; 邱维忠; 祁庆生
    • 摘要: 为了提高柠檬酸工业废水IC厌氧处理过程中沼气的产率,在之前研究的基础上,以预酸化时间、厌氧水力停留时间以及厌氧进水化学需氧量(COD)浓度为因子,采用Box-Behnke设计3因素3水平中心组合试验,响应面法优化沼气产率.优化得到的最佳工艺条件为预酸化时间5.3 h、厌氧水力停留时间4.4 h、厌氧进水COD浓度3 150 mg/L,在此条件下,所得沼气产率为0.487 L/g(COD).
    • 摘要: 将处理柠檬酸废水的内循环厌氧反应器的出水以不同比例回流至水解酸化池,研究了厌氧出水回流对水解酸化过程及厌氧处理过程的影响。实验结果表明:厌氧出水参与水解酸化能明显提高水解酸化池的出水pH及废水的预酸化度,厌氧出水添加比(V(厌氧出水):V(废水))为1:4及以上时,可使水解酸化池的出水pH稳定在4.5以上,同时达到10.0%以上的预酸化度,且对NH3-N的去除能力明显增强;
    • 杨永凯; 吕丹丹; 马磊; 刘彬; 孙庆峰; 孙召强
    • 摘要: 以柠檬酸废水为研究对象,研究了预酸化度对上旋流厌氧反应器处理性能的影响。研究结果表明,预酸化度对上旋流厌氧反应器系统的COD去除率、出水VFA、污泥增长量、产气量有明显的影响。随着预酸化度的提高,可以提高厌氧系统的COD去除率,降低出水VFA,增加沼气产量,但降低了颗粒污泥增长的速度。在实际工程应用中,控制预酸化度在20%~30%可以保持厌氧系统稳定高效的COD去除效果,同时保证颗粒污泥的快速增长。%Using citric acid wastewater as the research object, the effects of pre-acidification degree on performance of the vortex flow anaerobic reactor were studied. The experimental results showed that pre-acidification degree had obvious effect on COD removal rate, effluent VFA, the growth of sludge, biogas production. As the pre-acidification degrees higher, could improve the COD removal rate, reduce effluent VFA, increase biogas production, but reduce the granular sludge growth rate. Control pre-acidification degrees for 20% ~30% in the practical engineering application, COD removal rate of anaerobic system could keep stable and efficient, at the same time ensure that the rapid growth of the granular sludge.
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