muck removal
- muck removal的基本解释
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出碴
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The results indicates, with the same level of other parameters, the TN removal can reach 80.0% and 70.9% with the control of dissolved oxygen under the levels of 0.3-0.6mg/l and 0.6-0.9mg/l, respectively; the TN removal upgrades from 80%, 83% to 84.1% with the decrease of sludge load in the system from 0.1, 0.07, to 0.05gCOD/gMLSS·d; the nitrogen removal only reaches 58% when C/N is 4, but can reach more than 80% when C/N is at or over 7, which indicates that the TN removal increases when higher C/N ratio; when HRT increases from 12h, 18h to 24h, the TN removal also increases from 78.6%, 82.0% to 83.0%; the TN removal average in the system increases from 75.6%, 78.5% to 83.0% with the increase of sludge age from 18d, 20d to 24d; the low oxygen conditions in the modified Orbal oxidation ditch model do not decrease the effect of COD removal, and the dissolved oxygen gradient with the distribution of 0-2-1mg/l in the system ensures the COD removal reaching the range of 80%-86%; and the phosphate removal, however, is not good enough, which varies from 40% to 50%, even lower than 35% in occasional situations, and the phosphate concentration in the outflow varies in the range of 1.28-2.38mg/l, which dissatisfies the discharge standard with the level of 1.0mg/l.
试验结果表明,在其它参数相同的情况下,将外沟道的溶解氧分别控制在0.3~0.6mg/l 和0.6~0.9mg/l 两个水平,外沟道中TN 去除率分别为80.0%和70.9%;系统中污泥负荷分别为0.1gCOD/gMLSS·d、0.07 gCOD/gMLSS·d、0.05 gCOD/gMLSS·d时,随着污泥负荷的降低,TN 的去除率却是上升的,分别为80%、83%、84.1%;本试验中,当C/N 为4时,仅能获得58%的脱氮率,当C/N 为7 或更高时脱氮率能达到80%以上,进水C/N 比值越高,总氮的去除率越高;在本试验中采取的水力停留分别为12h、18h、24h 时,外沟道中的总氮去除率随水力停留时间的增加而增加,分别为78.6%、82.0%和83.0%;当系统泥龄分别为18d、20d、24d 时,系统平均TN 去除率分别为75.6%、78.5%、83.0%,随着泥龄的增大TN 的去除率增加;改良型奥贝尔模型的低氧条件并没有降低COD 的去除效果,系统0-2-1mg/l的溶解氧梯度分布使得COD 去除率一般都在80%~86%之间;本试验中磷的去除效果不好,去除率基本在40%~50%之间,有的甚至低于35%,出水磷的浓度在1.28~2.38mg/l 之间,低于1.0mg/l 的出水排放标准。
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In this thesis, the methods of surrounding rock masses stability classification on the basis of the geological documentation of muck and the boring parameters of TBM are approached, especially as follows:①The geological documentation of muck and the boring parameters of TBM in the Yellow River Diversion Project.of shanxi province is summarized systematically;②Based on the geological documentation of muck and the boring parameters of TBM, that whether the common methods of surrounding rock masses stability (the methods of regular factor classification) classification are feasible, is carried on the discussion;③According to the corresponding relation of muck and the boring parameters of TBM and the surrounding rock masses stability type, the extension assessment method of tunnel surrounding rock masses stability classification is set up, also the corresponding fortran calculation procedure worked out, and not only rational result in conformity with the reality can be obtained, but also the stability situation of surrounding rock masses in front of the working range can be predicted according to the change of the dependent value in the application instance of Yellow River Diversion Project;④Combining with the application instance of Yellow River Diversion Project, extension assessment method in the application of surrounding rock masses stability classification is compared and verificated in detail by applying fuzzy synthesis method by forefathers, and a certain degree discussion and summary about the application achievement of surrounding rock masses stability classification, which is assessed by extension assessment method and fuzzy synthesis method, are carried on.
本文基于渣料和TBM掘进参数的地质编录提供的地质信息进行了围岩稳定分类方法的探讨,重点进行:①对引黄工程中渣料和TBM掘进参数的地质编录的系统整理;②基于渣料和TBM掘进参数的地质编录获得的地质信息,对常用围岩稳定分类方法是否能够进行围岩稳定分类进行了探讨;③根据渣料和TBM掘进参数与围岩稳定类型的对应关系,应用可拓理论,建立了隧洞围岩稳定分类的可拓评价方法,还编制了相应的fortran计算程序,并在引黄工程的应用实例中不仅取得了与客观实际相符的合理结果,而且根据其关联度值的变化能够预测临近掌子面前方围岩的稳定情况;④结合引黄工程的应用实例运用模糊综合评判方法对可拓评判方法在围岩稳定分类中的应用进行了详细的验证、比较,并对前人在运用可拓学和模糊数学进行岩体稳定评判的应用成果方面,进行了一定的探讨、总结。
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The tests have Simulated the rainstorm state and the order state, and the results indicated the disposal of microorganisms-aquatic plant system is efficient. The optimization removal rate time was ascertained under the static state test, in dynamic test, comparing and analyzing the effect on removal rates of different concentration wastewater. The results showed, without aeration, the removal rate of CODCr, TN was 85.9%,75.1%, respectively, the highest removal rate of TP was 64.6%, and the concentration of DO increased steadily from 2mg/L to 7mg/L during experiment. In dynamic test, the microorganisms-aquatic plant systems have also appeared better effect on freshet, and the removal rate of TN,TP and CODCr, was 64%,69% and 81%, respectively.
利用接种高效微生物菌剂促进填料快速挂膜,并和水生植物联合作用去除水体中的氮磷等污染物,在静态水体下研究达到最佳去除效率的时间,并在连续流试验下对比分析不同浓度下的去除效率,根据静态模拟试验结果表明,在不曝气,自然复氧条件下,CODCr和TN的最终去除率分别为84.3%和71.4%,TP最高去除率为62.9%,DO也从2mg/L稳定的升高到7mg/L左右;在连续流模拟试验结果表明,该系统对雨后入湖的河水中TN、TP及CODcr的去除率分别稳定在近64%,69%和81%以上。
- 更多网络解释 与muck removal相关的网络解释 [注:此内容来源于网络,仅供参考]
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muck loader:装载机
muck 复盖层 | muck loader 装载机 | muck loading 矸装载
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muck soil:腐泥土,腐殖土,腐殖质土
muck roll 熟铁扁条轧辊 | muck soil 腐泥土,腐殖土,腐殖质土 | muck surface 淤泥表面
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muck car:土斗车
muck mill 熟铁扁条轧机 | muck car 土斗车 | muck shifter 废渣装运机