共查询到20条相似文献,搜索用时 158 毫秒
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在现有研究成果的基础上,考虑我国的污水处理特点,强调监管部门提出的节能降耗要求,给出了一套新的控制策略性能综合评价指标体系.该指标体系由目标层、变量层和指标层构成,指标层为最底层,含有9个可量化的指标,分别为达标因子、超标因子、能耗因子、物耗因子、受控变量追踪失败因子、操作频繁因子、操作幅度因子、出水峰值因子、出水波动因子.给出了单个指标计算方法以及性能评价综合指数计算方法.以曝气单元的DO末端控制和沿程控制策略评价比较为例,对该指标体系进行了案例应用,证明了该指标体系的实用性和可操作性. 相似文献
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介绍了组合式生物膜SBR工艺处理医院污水的工程实例.该工艺采用组合式生物膜SBR+化学法二氧化氯消毒,对医院污水中COD,BOD,SS,氨氮及粪大肠菌群有较高的去除率.运行管理全自动化,运行周期可根据实际情况调整工艺参数控制,处理后出水排入市政排水管网,其水质符合<医疗机构水污染物排放标准>(GB 18466-2005)要求. 相似文献
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地下水位是影响高边坡稳定的主要因素之一,通过对永久船闸高边坡渗流整体性状全过程持续进行监测、分析和处理,以了解边坡山体地下水位变化,及时掌握疏干排水设施的效果及地下水对边坡稳定性的影响,为评价船闸高边坡的安全状况提供重要资料,为设计验证提供参数,确保施工期及试运行期的安全。 相似文献
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通过对施工期至蓄水初期的马鹿塘水电站二期工程面板堆石坝开展系统的安全监测,整理、分析主要监测断面的资料,得出了大坝的实际工作性态。鉴于自蓄水以来库水一直处于较低(远低于正常蓄水位)的条件下坝体变形已较大,而且坝体变形的时效作用仍将延续,因此,在下阶段水位上升过程中,必须加强大坝的变形和渗流等监测,并及时对监测资料进行分析反馈,以便采取相应对策。 相似文献
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原生动物监测及预测评价污水处理厂运行状况的研究 总被引:1,自引:0,他引:1
在兰州雁儿湾污水处理厂采用微型生物群落监测方法--PFU法,以曝气池微型生物种群--纤毛虫类为研究对象,通过PFU监测及同期BOD5检测,发现污水处理厂曝气池纤毛虫物种丰富,以钟虫等固着缘毛目类为优势类群.纤毛虫类微型生物种数及数量丰度随时间季节有明显的变化特性.数据显示,纤毛虫数量丰度和种数与出水BOD5有一定的线性规律,证明了纤毛虫类优势种属能够指示出水水质的发展趋势,同时预测评价污水处理厂的运行状况. 相似文献
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Small wastewater treatment plants are often localized nearby tourist areas. Odour emissions are a major environmental issue in these plants and are considered to be the main cause of disturbance noticed by the exposed population. Odour measurement is carried out using analytical or sensorial methods. Sensorial analysis, being assigned to the "human sensor", is the cause of a considerable uncertainty.In this study, a novel procedure based on highly innovative analytical tool was used to identify and characterise the odour sources and the volatile substances that cause annoyance in a SWWTP located in a sensitive area, with the aim to remove the subjective component in the measure of the odours and define the induced impact. At the same time key odour compounds are detected, and the relationship between their concentration and the performances of the plant are investigated.The sources and the main chemical substances responsible for the olfactory annoyances were identified. Results highlight the applicability of the highly innovative tool in odour emission monitoring. Around 39 different substances were detected, with almost half being smell relevant components as well as responsible. Dimethyl disulphide was identified as key compound connected to the efficiency of the process. 相似文献
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SHARON process evaluated for improved wastewater treatment plant nitrogen effluent quality. 总被引:1,自引:0,他引:1
R van Kempen C C R ten Have S C F Meijer J W Mulder J O J Duin C A Uijterlinde M C M van Loosdrecht 《Water science and technology》2005,52(4):55-62
New stricter nitrogen effluent standards and increasing influent loads require existing wastewater treatment plans (WWTPs) to extend or optimize. At WWTPs with limited aeration capacity, limited denitrification capacity or shortage of aerobic sludge age, implementation of SHARON to improve nitrogen effluent quality can be a solution. SHARON is a compact, sustainable and cost-effective biological process for treatment of nitrogen-rich rejection waters. At WWTP Rotterdam-Dokhaven and WWTP Utrecht a SHARON has been in operation for several years. For both WWTPs the effect of SHARON on the nitrogen effluent quality has been evaluated. WWTP Rotterdam-Dokhaven has limited aeration capacity. By implementation of SHARON, the ammonia load of the effluent was reduced by 50%. WWTP Utrecht had limited denitrification capacity. The implementation of SHARON improved the effluent nitrate load by 40%. The overall TN removal efficiency increased from 65% to over 75% and strict nitrogen effluents standards (TN = 10 mg N/l) could be reached. Through modelling and supported by full scale practice it has been shown that by implementation of SHARON in combination with enhanced influent pre-treatment, the aerobic sludge age can be extended to maintain total nitrogen removal at lower temperatures. 相似文献
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目前污水处理厂的数学模拟已经朝全污水处理厂模拟的方向发展,着眼于污水处理厂整体的优化设计和运行.随着厌氧消化模型和旁流工艺模型的开发,建立包括一个污水处理厂水区和泥区以及旁流处理工艺在内的全厂污水处理工艺模拟已经成为可能.全污水处理厂数学模拟将是污水处理厂节能减排方案分析和评价的重要工具.全面介绍了全污水处理厂模拟的BioWin模型,主要包括活性污泥模型、厌氧消化模型和旁流处理工艺模型,并将此模型与现行其他常用模型进行对比. 相似文献
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成都市乡镇污水处理厂工艺方案探讨与选择 总被引:1,自引:0,他引:1
乡镇污水处理厂地理位置分散,经济条件较差,进水水质和水量波动较大,直接套用大型污水处理厂的处理工艺难以满足要求。介绍了几种适用于小城镇的污水处理工艺,并对其进行适用特点和经济性分析,在此基础上提出成都市乡镇污水处理厂的工艺方案选择建议。 相似文献
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