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1.
水解-接触氧化工艺处理纺织综合废水   总被引:2,自引:0,他引:2  
广东省溢达纺织有限公司纺织综合废水水质参数:pH=10~14,ρ(CODCr)=1000~1500mg/L,ρ(BOD5)=300~450mg/L,ρ(SS)=300mg/L,ρ(S2-)=3mg/L,水温40~50℃,色度400~600倍。采用水解酸化-生物接触氧化法处理,运行结果表明,处理后出水:pH=7~8,ρ(CODCr)=89mg/L,ρ(BOD5)=20mg/L,ρ(SS)=54mg/L,ρ(S2-)=0.8mg/L,色度31倍,符合排放要求。  相似文献   

2.
气浮—ABR—生物接触氧化处理乳制品废水   总被引:1,自引:0,他引:1  
采用气浮—ABR—生物接触氧化工艺处理乳制品废水。在进水CODCr为1 400 mg/L、BOD5为840 mg/L、SS为500 mg/L和pH=4.5的条件下,CODCr和BOD5的去除率分别达到95%和98%。出水CODCr、BOD5、SS和pH均达到《污水综合排放标准》(GB 8978—1996)一级排放要求。  相似文献   

3.
水解酸化-生物接触氧化-气浮工艺处理印染废水   总被引:4,自引:0,他引:4  
采用水解酸化-生物接触氧化-气浮工艺处理印染废水,结果表明,当进水CODCr、BOD5、SS的质量浓度分别为450~900、100~220、250~370 mg/L,pH值为7~11,色度为450~650倍时,出水CODCr、BOD5、色度、SS等各项指标均能达到《纺织染整工业水污染物排放标准》(GB 4287-92)中的一级排放标准,处理成本为0.805元/t。  相似文献   

4.
采用水解-接触氧化-气浮-混凝沉淀-生物炭工艺处理以分散染料为主的印染废水,设计规模为960m^3/d,进水水质为:pH8.01,CODCr992mg/L,BOD5 251mg/L,SS298mg/L,色度400倍;经本工艺处理后,总排放口出水水质为:pH7.64,CODCr72mg/L,BOD5 19mg/L,SS61mg/L,色度16倍。  相似文献   

5.
针对饮料生产废水的来源及其特点,采用升流式厌氧污泥床(UASB)与间歇式活性污泥法(SBR)联合工艺处理陕西某饮料公司的饮料生产废水。进水水质中CODCr为2 000 mg/L、BOD5为1 350 mg/L、SS为215 mg/L、pH为5~12;出水水质要求达到CODCr≤80 mg/L、BOD5≤20 mg/L、NH3-N≤12 mg/L、pH为6~9,即渭河水系(陕西段)污水综合排放标准BD 61/224—2006中的一级标准。该文通过介绍处理工艺流程、工艺设计参数,反应器的启动运行及工艺运行结果,提出了影响反应器启动及运行的一些影响因素及相应的控制措施。工程实践证明,UASB与SBR联合工艺在处理饮料生产废水时具有处理效果好、低能耗、易管理等特点。  相似文献   

6.
水解酸化-生物接触氧化工艺处理生物制药废水   总被引:3,自引:1,他引:2  
采用水解酸化-接触氧化工艺处理抗生素制药厂生产废水,处理水量200 m3/d。工程运行结果表明在进水CODCr、BOD5、SS的质量浓度分别为4 622、1 209、1 356 mg/L,色度为1 000倍,pH值为7.5时,处理后出水CODCr、BOD5、SS的质量浓度分别为316、95、324 mg/L,色度为220倍,pH值为7.8,去除率分别为93%、92%、76%和78%,出水各项指标符合《污水综合排放标准》(GB8978-1996)三级标准。  相似文献   

7.
水解酸化-接触氧化法处理磁头研磨清洗废水   总被引:2,自引:0,他引:2  
利用水解酸化-接触氧化法成功处理了磁头研磨清洗废水.废水进水BOD5、CODCr、SS和石油类分别为80~150mg/L、400~850mg/L、500~2200mg/L和80~150mg/L,经水解酸化-接触氧化法处理后,CODCr、BOD5、SS和石油类的去除率分别达90.9%、90.9%、97.6%和93.3%,使出水稳定达到污水排放一级标准.  相似文献   

8.
气浮-水解-SBR工艺处理化妆品厂废水   总被引:3,自引:0,他引:3  
采用气浮-水解-SBR工艺处理广州某化妆品厂生产废水和生活污水。运行结果表明:当生产废水水质pH值为6~9,CODCr,BOD5,SS,LAS的质量浓度分别为4830~9245,2230~4860,82~335,17~25mg/L时,经处理后出水水质达到广州市污水排放标准的一级标准:pH值为6~9,CODCr,BOD5,SS,LAS的质量浓度分别不大于80,30,65,4mg/L。对该工程的设计、启动和运行作了简介。  相似文献   

9.
陈晓峰 《广东化工》2010,37(6):233-234
利用水解酸化-UASB-A2/O工艺对一规模化禽类污水进行了处理,处理前主要污染物浓度范围分别为CODCr=11000~13000mg/L,BOD5=3500~5000mg/L,SS=4000~5500mg/L,pH=8~10,NH3-N=3000~4000mg/L,处理后出水水质为:CODCr=200mg/L,BOD5=100mg/L,SS=50mg/L,pH=7.2,NH3-N=300mg/L,满足GB18596-2001的要求。  相似文献   

10.
采用化学絮凝、UASB、好氧工艺处理银杏酮生产废水,现场运行表明当进水ρ(CODCr)为30200mg/L,ρ(BOD5)为11000mg/L,ρ(SS)为483.7mg/L,最终出水ρ(CODCr)为127.6mg/L,ρ(BOD5)为43.6mg/L,ρ(SS)为85.8mg/L,出水达到国家《污水综合排放标准》(GB8978-1996)中新建企业二级标准。  相似文献   

11.
It is well established that a wide range of drugs of abuse acutely boost the signaling of the sympathetic nervous system and the hypothalamic–pituitary–adrenal (HPA) axis, where norepinephrine and epinephrine are major output molecules. This stimulatory effect is accompanied by such symptoms as elevated heart rate and blood pressure, more rapid breathing, increased body temperature and sweating, and pupillary dilation, as well as the intoxicating or euphoric subjective properties of the drug. While many drugs of abuse are thought to achieve their intoxicating effects by modulating the monoaminergic neurotransmitter systems (i.e., serotonin, norepinephrine, dopamine) by binding to these receptors or otherwise affecting their synaptic signaling, this paper puts forth the hypothesis that many of these drugs are actually acutely converted to catecholamines (dopamine, norepinephrine, epinephrine) in vivo, in addition to transformation to their known metabolites. In this manner, a range of stimulants, opioids, and psychedelics (as well as alcohol) may partially achieve their intoxicating properties, as well as side effects, due to this putative transformation to catecholamines. If this hypothesis is correct, it would alter our understanding of the basic biosynthetic pathways for generating these important signaling molecules, while also modifying our view of the neural substrates underlying substance abuse and dependence, including psychological stress-induced relapse. Importantly, there is a direct way to test the overarching hypothesis: administer (either centrally or peripherally) stable isotope versions of these drugs to model organisms such as rodents (or even to humans) and then use liquid chromatography-mass spectrometry to determine if the labeled drug is converted to labeled catecholamines in brain, blood plasma, or urine samples.  相似文献   

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Scentless plant bugs (Heteroptera: Rhopalidae) are so named because adults of the Serinethinae have vestigial metathoracic scent glands. Serinethines are seed predators of Sapindales, especially Sapindaceae that produce toxic cyanolipids. In two serinethine species whose ranges extend into the southern United States,Jadera haematoloma andJ. sanguinolenta, sequestration of host cyanolipids as glucosides renders these gregarious, aposematic insects unpalatable to a variety of predators. The blood glucoside profile and cyanogenesis ofJadera varies depending on the cyanolipid chemistry of hosts, and adults and larvae fed golden rain tree seeds (Koelreuteria paniculata) excrete the volatile lactone, 4-methyl-2(5H)-furanone, to which they are attracted.Jadera fed balloon vine seeds (Cardiospermum spp.) do not excrete the attractive lactone. Loss of the usual heteropteran defensive glands in serinethines may have coevolved with host specificity on toxic plants, and the orientation ofJadera to a volatile excretory product could be an adaptive response to save time.Mention of a commercial product does not consititute an endorsement by the USDA.  相似文献   

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Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.  相似文献   

16.
2008~2009年世界塑料工业进展   总被引:4,自引:1,他引:3  
收集了2008年7月~2009年6月世界塑料工业的相关资料,介绍了2008~2009年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况。按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、环氧树脂、不饱和聚酯树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍。  相似文献   

17.
建立了测定地球化学样品中包括As、Cr、Ge、V等18种微量、痕量元素的ICP-MS方法。地化试样用HF-HNO3混酸分解后,以1 1 HNO3溶解干渣。由于制样不使用盐酸,避免了Cl对As、Cr、Ge、V的质谱干扰。用国家一级地球化学标准物质GBW 07309制备溶液优化仪器工作参数,并用于校准。方法测定限(6s)为:0.007~6.4μg/g,精密度(RSD%,n=12)为:29%~9.4%,经过国家一级地球化学标准物质的分析验证,结果与标准值吻合。方法已应用于国土资源调查的试样分析。  相似文献   

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