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通过研究餐饮废水中BOD5和COD Cr之间的相关性,用线性函数BOD5=bCODCr+a的形式进行一元回归,间接求出BOD5,指导BOD5的测定. 相似文献
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辽宁省朝阳市城市污水BOD与COD关系的探讨 总被引:1,自引:0,他引:1
从BOD与COD的构成及降解动力学出发,探讨了BOD与COD的相关关系,得到了BOD5与COD的相关模型,应用朝阳市城市污水的实测数据和数理统计模型进行了检验。 相似文献
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用蚕豆微核技术对淮南大通和谢二煤矿塌陷塘的水体水质进行监测,同时测定了水体的氯化物、电导率、CODCr、BOD5、DO和总磷、总氮。结果表明:大通和谢二煤矿塌陷塘水质已经受到中度污染;蚕豆微核技术与氯化物、电导率、CODCr、BOD5、DO和总磷、总氮具有一定的相关性。 相似文献
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根据数学中统计学和分析数学的原理,应用高浓度BOD5的计算公式,画出几何图形,推出序列函数的解析表达式,对已知浓度范围的BOD5样品,可快速求出其稀释倍数。其方法易于操作,省时、快速、准确。 相似文献
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嘉定区水系中BOD5与CODCr比值变化关系的研究 总被引:1,自引:0,他引:1
通过对1995—2004年上海市嘉定区内各个不同类型的污染控制断面BOD5、CODcr,监测结果的统计,得出各年的B/C值及其10年的均值。这些数据一定程度上反映了嘉定区整体水系的有机污染状况。进一步研究发现.在B/C值稳定的地表水中,BOD5与CODcr有良好的相关性,此相关性对以后区域水系中断面地表水CODcr,BOD5的数据质保提供了借鉴。 相似文献
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WANG Zhi-gang LIU Wen-qing ZHAO Nan-jing LI Hong-bin ZHANG Yu-jun SI-MA Wei-cang LIU Jian-guo 《环境科学学报(英文版)》2007,19(7):787-791
Taihu Lake is one of the five biggest lakes in China. Surface water samples from 26 sampling sites of Taihu Lake were collected. Furthermore wet chemical analysis (CODCr and BOD5) and measurement of three dimensional excitation-emission matrix (3DEEM) spectra in the laboratory have been conducted. Using parallel factor analysis (PARAFAC) model, three components of colored dissolved organic matter (CDOM) have been identified successfully, based on the analysis of 3DEEM data. The characteristics of the three components also have been described by comparing them to some components of CDOM, identified in earlier researches. Meanwhile, spatial variations of concentration for the three components in Taihu Lake have been analyzed, and the result indicates that the concentration of component 1 depends more on the situation of wastewater pollution and can be used as the indicator of wastewater pollution. The relationship between the concentrations of the three components and results of the wet chemical analysis show that none of the three components can be used as indicators of gross organic matter in water. However, the concentrations of all the three components have obvious linear relationships with the BOD5 value, especially for component 1 (r = 0.72878). Finally, the potential applications of the composition analysis based on 3DEEM and PARAFAC model in water quality monitoring have been illuminated. 相似文献
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UV-catalytic treatment of spent caustic from ethene plant with hydrogen peroxide and ozone oxidation 总被引:1,自引:0,他引:1
YU Zheng-zhe SUN De-zhi LI Chang-hai SHI Peng-fei DUAN Xiao-dong SUN Guo-rong LIU Jun-xin 《环境科学学报(英文版)》2004,16(2):270-275
The performance of UV/H2O2, UV/O3 and UV/H2O2/O3 oxidation systems for treating spent caustic from an ethylene plant was investigated, in UV/H2O2 system, with the increase of H202 dosage, removal efficiencies of COD and the ratio of biochemical oxygen demand(BOD) to chemical oxygen demand(COD) of the effluent were increased and a better performance was obtained than the H2O2 system alone. In UV/H2O2 system, removal efficiency of COD reach 68% under the optimum condition, and BOD/COD ratio was significantly increased from 0.22 to 0.52. In UV/O3 system, with the increase of O3 dosage, removal efficiency of COD and BOD/COD ratio were increased, and a better performance was obtained than the O3 system alone. Under the optimum condition, removal efficiency of COD was 54%, and BOD/COD ratio was significantly increased from 0.22 to 0.48. In UV/H2O2/O3 system, COD removal efficiency was found to be 22.0% higher than UV/O3 system. 相似文献
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在处理低浓度城市生活污水时,利用改良E型氧化沟超耐负荷的特点,不设沉砂池、初沉池,进水经格栅后直接进入厌氧池进行生化处理,充分利用进水碳源和所含高效活性微生物,将城市污水输送、处理系统融为一体.加大厌氧处理比重,适当延长厌氧池水力停留时间,避免氧化沟过量曝气现象,增强脱氮去磷效果. 相似文献
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《黑龙江环境通报》2018,(3):17-22
用低压差微孔膜过滤法评价了大庆油田第一采油厂24个污水站过滤后的污水,配制廉价驱油用交联聚合物溶液LPS(HPAM的质量浓度为200 mg/L,柠檬酸铝的质量浓度为10 mg/L)的可能性。结果表明:经7 d、45℃静置下的交联反应,有17个站的污水可以配制出LPS,占污水站总数的71%。但是,所配制的LPS较同等条件下用龙虎泡清水配制的LPS封堵效果差。通过研究发现,LPS的形成与污水中残余的HPAM、CO3~(2-)、Mg~(2+)和SO_4~(2-)质量浓度存在负相关关系,与HCO~(3-)质量浓度存在明显的正相关关系,与Cl~-、Ca~(2+)、(K~++Na~+)质量浓度和总矿化度无明显关系。 相似文献
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论述景观设计在市政污水处理场建设中的重要性。从景观设计分类的角度,对市政污水处理场建筑造型设计、造景组合进行分析和探讨,并结合具体设计方案讨论这一课题。 相似文献
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王金彦 《石油化工环境保护》1998,(1):19-21
对大连石油化工公司炼油厂水污染物排放总量控制存在的问题进行了分析,提出压缩排污量、完善改造污水处理设施、强化管理、推行“清洁生产”等措施来控制排污总量。 相似文献
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城镇生活污水再利用的技术方法研究 总被引:6,自引:0,他引:6
结合我国城镇生活污水处理水平低,地表水污染现象严重这一迫切的实际问题,提出将生活污水集中收集,通过排污管道输送农田进行灌溉处理的方法,达到节水节肥、减轻水体污染的目的。分析了生活污水再利用的技术途径、污染防御措施、产生的环境和经济效益,提出在作物非生长季节及汛期生活污水净化和再利用的方法。 相似文献
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污灌--城市污水资源化的有效途径 总被引:2,自引:0,他引:2
以徐州市为例,论述了在干旱缺水而经济又欠发达地区,可在做好污染源治理及完善城市基础设施的基础上,合理地将城市污水用于发展农、林业,即有效地利用了水资源,又将产生相应的经济效益;不仅有效地保护了地表水环境,而且为污水处理后的去向寻找了新的出路,可谓一举多得。 相似文献
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