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污泥活性

污泥活性的相关文献在1990年到2022年内共计143篇,主要集中在废物处理与综合利用、建筑科学、环境污染及其防治 等领域,其中期刊论文79篇、会议论文11篇、专利文献154195篇;相关期刊45种,包括科技致富向导、中国沼气、大氮肥等; 相关会议10种,包括2011年全国氮肥、甲醇行业技术经验交流会、2011传化股份全国印染行业节能环保年会、全国城镇污水处理厂除磷脱氮及深度处理技术交流大会等;污泥活性的相关文献由454位作者贡献,包括金仁村、张正哲、任洪强等。

污泥活性—发文量

期刊论文>

论文:79 占比:0.05%

会议论文>

论文:11 占比:0.01%

专利文献>

论文:154195 占比:99.94%

总计:154285篇

污泥活性—发文趋势图

污泥活性

-研究学者

  • 金仁村
  • 张正哲
  • 任洪强
  • 吴聪慧
  • 周煜璜
  • 布阿依·阿姆古丽
  • 程雅菲
  • 刘志刚
  • 刘牡
  • 吴志超
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 栾运加; 高雅琼; 曲金亮; 赵大勇
    • 摘要: 介绍IMC生化工艺在处理煤气化废水过程中对钙硬的降解效果,使处理后排水钙硬去除率达到80%以上,并阐述Ca2+浓度不断升高对IMC生化处理污泥浓度、溶解氧的影响,分析IMC生化处理的除硬效果对中水回用及工业水系统梯级利用的可行性推广建议。
    • 王曦
    • 摘要: 生物强化技术在水污染治理中发挥着重要的作用,治理效率高、耗费资金低.因此,生物强化技术在水污染治理中被广泛应用.本文主要基于该技术在水污染治理中的具体应用,分析生物强化技术的作用以及机理,并深刻探讨了该技术在水污染治理中的应用模式,分析其具体应用效果,希望可以为相关企业的水污染治理提供经验借鉴.
    • 张泽宇; 王建芳; 齐泽坤; 钱飞跃; 沈耀良; 尤岚; 黄继会
    • 摘要: 针对进水氨氮浓度变化会影响CANON颗粒污泥功能微生物间的协同导致系统不稳定的问题,通过接种常温下贮存2个月的自养颗粒污泥,并采用3种调控策略(维持HRT不变,快速提升氨氮浓度(R1);维持HRT不变,逐级提升氨氮浓度(R2);逐级提升进水氨氮浓度同时调整HRT,以125 mg·L-1为进水氨氮增幅(R3)),分别考察各种调控策略对系统适应275 mg·L-1和400 mg·L-1氨氮浓度的效能影响,探讨调控策略与污泥性能的关系及游离氨(FA)、溶解氧(DO)的影响.结果 表明,污泥性能提升期,负荷变化最为平稳的策略R3率先适应进水氨氮浓度的提升,仅44 d内总氮去除负荷可达到3.5 kg·(m3·d)-1;污泥性能成熟期,快速提升负荷的策略R1可缩短适应时间至25 d,总氮去除率稳定在80%以上,去除负荷达到5.3 kg·(m3·d)-1.FA会影响功能微生物活性,策略R1在污泥性能提升期,FA浓度高达16.6~26.7 mg·L-1,一定程度上抑制了好氧氨氧化菌(AOB)和厌氧氨氧化菌(AMX)的活性,导致系统适应期延长.在污泥适应高氨氮负荷过程中,比氨氧化速率(SAOR)和比总氮去除速率(SNRR)逐渐提高,污泥浓度和颗粒粒径逐渐增大.f值(△NO3--N/△TN)可作为DO调节的重要依据,DO与氨氮去除负荷呈良好的正相关性.
    • 韦学玉; 刘志刚; 闫玉涛; 徐晓平; 王晓菊
    • 摘要: 为了探讨化学解偶联剂在实现污泥减量的同时对污泥活性抑制作用,通过批次试验研究不同浓度邻氨基苯酚(oAP)对污泥减量效果、微生物活性以及由于微生物活性的改变对基质(NH4+-N、CODcr)去除变化的影响.分别采用TTC-ETS(氯代三苯基四氮唑脱氢酶)活性、INT-ETS(碘硝基四氮唑脱氢酶)活性、AUR(氨摄取速率)和SOUR(比耗氧速率)4个指标考察污泥活性受oAP的抑制情况.结果表明:oAP添加量为12mg/L时,平均表观污泥产率Yobs由0.443下降到0.256mgMLSS/mgCOD,污泥减量为42.20%.与有机物去除抑制相比,活性污泥系统对NH4+-N去除的抑制作用更加显著,而硝化细菌比异养菌对oAP响应更敏感.因此,NH4+-N去除率比CODcr去除率更能反映出oAP对污泥活性的影响通过NH4+-N去除率的抑制对比,AUR是最能有效地表征oAP对活性污泥系统中的微生物抑制作用通过IC50分析显示,TTC-ETS的活性为35.51mg/L,在所有指标最小,灵敏度最高,是表征oAP抑制污泥活性的最佳指标.%In order to view sludge reduction and estimate the inhibitory effect of chemical uncoupler on the activity of sludge,the influence of o-aminophenol (oAP) addition on efficiency of sludge reduction.The microbial activity and variation of removal efficiency in NH4+-N and CODcr induced by addition oAP were investigated through batch tests.Four indexes,TTC-electron transport system activity (TTC-ETS),INT-electron transport system activity (INT-ETS),ammonia uptake rate (AUR) and specific oxygen uptake rate (SOUR) were used to characterize the inhibitory effects of the metabolic uncoupler on the sludge activity.The results showed that the average apparent sludge yield of Yobs was decreased from 0.443 to 0.256MLSS/mgCOD for 42.20%,when oAP concentration was set as 12mg/L.The inhibitory effect of oAP on removing NH4+-N was more significant than on decomposing organics,and nitrifying bacteria were more sensitive than heterotrophic bacteria to the inhibitory effects of oAP,which showed the toxic influence on the activity of sludge.Through comparing the inhibition rates of NH4+-N removal efficiency,AUR is supposed to be the most effective index to characterize the inhibitory effects of metabolic uncoupler.Besides,TTC-ETS activity can be used as the optimum index to characterize inhibitory effects of oAP,because its median inhibitory concentration was the minimum of 35.51mg/L,as the minimum one among the four indexes.
    • 王佳琪; 朱易春; 李齐佳
    • 摘要: 采用低C/N污水驯化的污泥为试验对象,以比耗氧速率和脱氢酶活性为表征,研究在超声频率为20 kHz,功率密度为0~0.35 W/mL、辐照时间为0~60 min处理后污泥活性的变化.结果显示,当采用声能密度和辐照时间为0.2 W/mL和12 min时,提高污泥活性的效果最显著.探究最佳条件下超声处理后0~10 h污泥活性的变化规律,发现辐照后5 h污泥活性达到最大,随后逐渐下降,直到8~10 h促进作用基本消失.采用辐照污泥比例分别为5%、15%和25%时,得出的最佳辐照污泥比例为15%,COD、氨氮、总磷出水浓度比对照组分别降低39.6%、37.1%、14.9%.%Using low C/N wastewater cultivated sludge as experiment object,and specific oxygen uptake rate(SOUR) and dehydrogenase(DHA) as characterization,the sludge activity changes have been studied,after treated under the conditions below:ultrasonic frequency 20 kHz,power density 0-0.35 W/mL,and irradiation time 0-60 min. The re-sults show that when the sound energy density is 0.2 W/mL and irradiation time 12 min ,the effects of increasing sludge activity is the most remarkable. After treated under the optimal conditions for 0-10 h. The changing rule of the activity of sludge is probed into. It is found that after irradiated for 5 h ,the sludge activity reaches the highest , then goes down gradually,and the stimulating effect disappears basically till 8-10 h. When the proportions of irra-diated sludge used are 5%,15%and 25%respectively,the best irradiated sludge proportion obtained is 15%. Com-pared with the contrasted group,the concentrations of COD,ammonia nitrogen and total phosphorus in effluent de-crease by 39.6%,37.1%and 14.9%,respectively.
    • 吕心涛; 孙洪伟; 吴长峰; 马娟; 陈永志; 方晓航
    • 摘要: Three sequencing batch reactors (SBRs) (R0:aeration stopped when nitrification completed exactly;R0-30:aeration stopped 30 min ahead of when nitrification completed;R0+30:aeration stopped 30 min exceeded when nitrification completed) were operated to investigate the synergetic effect of free ammonia (FA) and length of aeration phase on the sludge settleability by controlling the conditions of three FA concentrations (0.5,5.1,10.1 mg/L) combined with three aeration time (t0:when nitrification completed exactly;t0-30:30 min ahead of when nitrification completed;t0+30:30 min exceeded when nitrification completed).The results showed that:The average NH4+-N removal rate of R0 and R0 +30 system was 98.6% and 99.3%,respectively throughout the whole experimental period,while the R0-30 system was just 72.3% under the same initial FA concentration;under the lower FA(0.5 mg/L,5.1 mg/L),with aeration time increasing,settling velocity(SV30) and sludge volume index(SVI) values reduced gradually,the sludge settleability was improved;under a higher FA (10.1 mg/L) concentration,with the increase of the operating cycle,the sludge settleability was improved gradually,and the average SVI values of system was in the sequence of R0-30 > R0 +30 > R0 with the value of 165.1,152.5,134.5 mL/g,and the average activity coefficients of sludge were in the order of fR0-30 >fR0 >fR0+30 with the values of 0.77,0.70 and 0.65.It was found that sludge activity reduced when increasing aeration time under higher FA(10.1 mg/L) concentration.%采用3个序批式反应器(SBR)(R0:硝化结束时停曝气;R0-30:硝化结束提前30min停曝气;R0+30:硝化结束延迟30 min停曝气),控制3种游离氨(FA)浓度梯度(0.5,5.1,10.1 mg/L)协同3种曝气时间(t0:硝化结束时停曝气;t0-30:硝化结束提前30 min停曝气;t0+30:硝化结束延迟30 min停曝气)的条件下,研究了FA协同曝气时间对活性污泥沉降性能的影响.结果表明:整个试验过程,在初始FA浓度相同条件下,R0和R0+30系统NH4-N平均去除率分别为98.6%和99.3%,而R0-30系统NH4+-N平均去除率仅为72.3%.在较低FA浓度(0.5,5.1 mg/L)条件下,随着曝气时间增加,活性污泥的污泥沉降比(SV30)值和污泥体积指数(SVI)值均逐渐降低,污泥沉降性能趋好.在较高FA浓度(10.1 mg/L)条件下,随着运行周期的增加,污泥沉降性能逐步变好,R0-30系统的SVI平均值最大,R0+30系统次之,R0系统最小,其值分别为165.1,152.5,134.5 mL/g,且污泥活性f平均值大小顺序fR0-30>fR0>fR0+30,其值分别为0.77、0.70和0.65.这表明在较高FA浓度(10.1 mg/L)条件下,曝气时间延长,导致污泥活性降低.
    • 于阳阳; 于少亭; 张淑君; 冯骞; 王萧; 闫玉涛; 钟天意
    • 摘要: The effect of different aeration intensity (Q=40,80,100,120,140,160 L/h) on the pollutants (COD and ammonia nitrogen) removal ability of activated sludge was investigated by using six sets of column sequencing batch reactor (SBR).The influence mechanism of hydrodynamic conditions on the pollutants removal ability was described by using the SOUR activity and the dissolved oxygen penetration depth.The results showed that with the increase of running time, the ability of the activated sludge system to removal COD and ammonia nitrogen increased gradually and reached the stability. In the stable phase, with the increase of aeration rate, the removal efficiency of COD and ammonia nitrogen first increased and then decreased, while the average removal rate of COD and ammonia nitrogen was the highest at 95.6% and 95.86% respectively, when the aeration rate was 100 L/h. In the stable stage, the activated sludge activity also increased first and then decreased with the increase of aeration intensity. R3(Q=100 L/h) had the strongest activity, and the SOUR was 46.0 mg/(g·h), while R6 (Q=160 L/h) activity was the lowest, SOUR was only 25.1 mg/(g·h).And the proportion of anoxic area increased at first and then decreased, while R3 was the highest, 68.45%. Under the experimental conditions, when the aeration rate is 100 L/h , the sludge system has the optimal reaction conditions.%采用6组柱状序批式反应器(SBR),考察了不同曝气强度(Q=40,80,100,120,140,160 L/h)对活性污泥降解污染物(COD和氨氮)能力的影响.在此基础上,利用SOUR活性指标和溶解氧渗透深度,阐述曝气强度对活性污泥污染物去除能力的影响机制.结果表明,随着运行时间的增加,各活性污泥系统去除COD和氨氮的能力逐渐提升并到达稳定.稳定期,随着曝气强度的增加,COD及氨氮去除效率先升高后降低,在曝气强度为100 L/h时,COD及氨氮的平均去除率最高,分别为95.6%和95.86%.稳定期污泥活性同样随曝气强度变化而先增高后降低,Q为100 L/h时污泥活性最强,SOUR值为46.0 mg/(g·h),而Q为160 L/h时活性最低,SOUR仅25.1 mg/(g·h);缺氧区域占比先增加后减少,R3时最高,体积分数为68.45%;在此实验条件下,当曝气强度为100 L/h时,为污泥系统提供了最佳的反应条件.
    • 王伸; 邓良伟; 徐则; 郑丹; 王兰; 王霜
    • 摘要: 好氧生物处理法是废水处理使用最广泛的方法.常用的控制参数有pH值、溶解氧(DO)、温度、污泥浓度、污泥负荷和污泥龄(SRT)等.其中,pH值是重要的调控因子,直接影响好氧处理污泥微生物的种类、生命活动、代谢活力、表面特性.文章讨论了污水处理过程中pH值变化的原因和pH值变化对污染物去除(主要为有机物、氨氮和TP)的影响,并分析了pH值变化对污泥的沉降性能的影响及其机理.
    • 陈丽娜; 冯骞; 吴俊锋; 任晓鸣; 黄洁惠; 谈俊益
    • 摘要: 以序批式活性污泥法为例,通过改变搅拌浆的转速,调整水流的剪切作用,研究了以G值表征的水力剪切作用对活性污泥数量、活性和污染物降解能力的影响,寻求反应器中的最佳水流剪切作用条件,以优化系统的运行.结果表明,随着剪切作用的增加,污泥浓度先下降后升高,污泥的活性先升高后降低,活性污泥对污染物的降解速率常数先增加后降低.利用水流剪切作用来调节反应器中活性污泥的特性,优化反应器的运行是可行性的.
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