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从碱减量废水中回收对苯二甲酸的实践 总被引:2,自引:0,他引:2
碱减量废水的治理是印染行业的突出难题,从碱减量废水中回收对苯二甲酸的技术,实现了清洁生产和资源的回收,具有良好的社会效益、环境效益和可观的经济效益,不仅技术可行,而且实用性强,具有推广价值。 相似文献
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以启东酒厂为例,阐述啤酒行业在“三废”达标排放的基础上,根据本企业现状,结合技术改造,从能源、工序和产品等方面,进行啤酒清洁生产评估和制订清洁生产方案,并付诸实施。取得了显著的经济效益、社会效益和环境效益。 相似文献
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厌氧接触法处理啤酒废水的研究 总被引:4,自引:0,他引:4
啤酒废水含有麦糟、糖类、酵母体、啤酒残液、洗涤剂和其他一些污物。据报道,国外每生产一吨啤酒可产生废水8~20吨,国内一般为20~30吨。啤酒废水中有机物含量较多,不处理直接排放,会大量消耗水体溶解氧,恶化环境。近几年来我国啤酒产量又有了非常显著的增加,因此,啤酒废水的处理已是一个日益引人关注的问题。啤酒废水属于中等浓度的有机废水。国外已有用好氧或厌氧生物法等技术进行研究和处理的先例。我国上海、杭州、北京和天津等城市的有些设计院和环保所与有关啤酒厂协作,也进行过一些啤酒废水好氧生物处理的研究, 相似文献
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Barley is grown as a crop in South Africa, mainly for use in the barley beer (lager) industry, particularly in the production of barley malt. This investigation was done to find out what fungal infection and mycotoxin contamination this barley and the malt contained. The survey, done in 2005, not only covered barley and malt but also the final product in the form of several brands of beer purchased from retail outlets. Analysis was done using a range of methodologies including chromatography, immunoaffinity/fluorimetry and cytotoxicity testing. The results show that barley, which also includes barley sold directly to the public, and malt, contain various fungi, sometimes at high incidence and also a range of mycotoxins which persisted through, although at low levels, to beer. The malt showed a different pattern of micro flora, as compared to the barley, which indicates infection during the malting process, which is not uncommon. Interestingly, fumonisin B1 was found in some of the samples, as well as the beer, although in the latter case these were at very low levels. Recent studies have shown that the immunoaffinity/fluorimetry method can give false positives for the fumonisins, so these results were confirmed by high performance liquid chromatography. As is the case with other cereals grown in South Africa, there is the concern that the public is exposed to mycotoxins on a regular basis through the consumption of products made from them. 相似文献
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改良剂对Cd污染土壤中小白菜品质的影响 总被引:1,自引:0,他引:1
通过小白菜盆栽试验,以啤酒污泥、草木灰及其混合物作为土壤改良剂,以生物量、可溶性糖、维生素C和叶绿素含量为指标,研究了改良剂对小白菜品质的影响,并分析了土壤中Cd赋存形态的变化。结果表明,不同改良剂在性质和改良机制上存在差异,因此改良效果各不相同,其中啤酒污泥和草木灰的混合物的改良效果最好,其次是啤酒污泥,最后是草木灰。虽然3种改良剂均能降低小白菜茎叶中Cd含量和土壤中有效态(水溶态和可交换态)Cd含量,提高小白菜品质,但小白菜茎叶中Cd含量仍超过《食品中污染物限量》(GB 2762—2005)规定的蔬菜中Cd限量值。 相似文献
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Benzo(a)pyrene-14C (1 ppm) was applied to wort and boiled with hops in a brew process. The wort after filtration was subjected to fermentation. The hops and yeast were found to contain more than 99 % of applied radioactivity and consisted of benzo(a)pyrene. The radioactivity dissolved in beer was less than 1 % and the chemical nature could not be identified. 相似文献
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Eliopoulos Christos Arapoglou Dimitrios Chorianopoulos Nikos Markou Giorgos Haroutounian Serkos A. 《Environmental science and pollution research international》2022,29(20):29562-29569
Environmental Science and Pollution Research - Brewers’ spent grain (BSG) represents the 85% of the total residue produced during the beer brewing process, with a global annual production... 相似文献
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Residues of EBDC (ethylenebisdithiocarbamate) fungicides and ETU (ethylenethiourea; 2-imidazolidinethione) were monitored in beers and wines from different locations. No EBDC residues were detected in any of the samples examined. Concerning the ETU residues, the residue levels higher than the limit of method detection (0.01 ppm) were 22.6% and 7.3% in the commercial beer and wine samples respectively, but the number of samples containing more than 0.1 ppm of ETU was practically negligeable. 相似文献
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中小型点源污染的控制是提高水环境质量和解决水资源短缺的关键。一体式悬浮载体生物流化床(ISCBFB)占地面积小、处理效率高,适合中小型点源污水的处理。以公牛啤酒厂废水为试验原水进行了研究,试验期间进水COD平均浓度1 213.38 mg/L,出水平均为50.75 mg/L,平均去除率达到95.82%。进水氨氮平均浓度为22.50 mg/L,出水平均为4.31 mg/L,平均去除率达到80.99%,试验中全部出水水样COD及氨氮浓度均达到国家《污水综合排放标准》(GB 8978-1988)一级标准。总之,一体式悬浮载体生物流化床对啤酒废水具有很好的去除效果。 相似文献
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以ABR反应器为基础,采用笼状填料,增加了缺氧与好氧段,设计了新型的ABR;以啤酒废水为处理对象,考察了新型反应器的启动过程,研究了新型反应器对废水COD的去除效果,分析了HRT、有机容积负荷对COD去除的影响,探讨了新型反应器处理过程中的pH变化及其原因,阐述了笼状填料截留和微生物的附着生长是出水SS较低的原因,出水氨氮浓度较低是增设的缺氧段和好氧段共同作用的结果。实验结果表明,其COD去除效率达96%,有机容积负荷约0.647~1.745 kg/(m3.d);当进水量为50 L/d时,其出水水质达到啤酒废水排放标准。 相似文献