共查询到19条相似文献,搜索用时 593 毫秒
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通过对浓缩苹果汁加工厂用水量及排水水质的监测,确定重点节水减污单元。在清洁生产思想的指导下改进重点节水减污单元生产工艺并加强管理,达到了节水减污的目的。 相似文献
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啤酒生产要消耗大量的水,同时产生大量废水,废水的产生将对周边环境造成影响。为了节约水资源,保护环境,节水减污工作势在必行。本文就啤酒厂如何有效地开展节水减污工作进行一些探讨。 相似文献
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经国家经贸委批准,江苏金莲纸业有限公司成为江苏省唯一一家由奥地利援助的非木材纤维制浆造纸节水减污技术方案研究项目的中方项目单位。该项目是我国国家经贸委与奥地利的国际合作项目,外方专家将根据我国的非木材纤维制浆造纸企业的实际生产情况,为企业制定详细的节水减污技术方案,从而使企业在生产过程中达到减少排污量降低排污成本的目的。这是金莲纸业与芬兰CONOX公司合作开展“造纸黑液资源化处理”项目后,利用国际先进技术,借助外资根治污染的又一新举措。金莲纸业将上马节水减污项目@蒋忠道 相似文献
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论述了采用黑液循环置换加热蒸煮技术改造我国蒸球、立锅间歇蒸煮工段的必要性、可能性和实施办法。在此基础上,提出了造纸厂制浆车间进一步节水、减污的设想。 相似文献
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糖蜜酒精废液经蒸发浓缩后制成干粉减水剂、配制生物有机肥等资源化利用是行业内推荐采用的成熟工艺技术。但酒精废液蒸发浓缩通洗罐水水量大、挥发酸高、COD 含量高是一直困扰该工艺的问题。本技术通过对通洗罐水进行沉降、油质分离、灭菌处理等工序,使其挥发酸达到工艺用水指标要求,把处理后的通洗罐水作为工艺用水添加至糖蜜稀释箱,使糖蜜酒精厂的废水产生量削减20%,单位成品废水产生量小于10 m3/kL,达到酒精制造业清洁生产(HJ581-2010)一级水平。 相似文献
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Hashem Asgharnejad Ehsan Khorshidi Nazloo Maryam Madani Larijani Nima Hajinajaf Hamidreza Rashidi 《Comprehensive Reviews in Food Science and Food Safety》2021,20(5):4779-4815
Food processing is among the greatest water-consuming industries with a significant role in the implementation of sustainable development goals. Water-consuming industries such as food processing have become a threat to limited freshwater resources, and numerous attempts are being carried out in order to develop and apply novel approaches for water management in these industries. Studies have shown the positive impact of the new methods of process integration (e.g., water pinch, mathematical optimization, etc.) in maximizing water reuse and recycle. Applying these methods in food processing industries not only significantly supported water consumption minimization but also contributed to environmental protection by reducing wastewater generation. The methods can also increase the productivity of these industries and direct them to sustainable production. This interconnection led to a new subcategory in nexus studies known as water-food-environment nexus. The nexus assures sustainable food production with minimum freshwater consumption and minimizes the environmental destructions caused by untreated wastewater discharge. The aim of this study was to provide a thorough review of water-food-environment nexus application in food processing industries and explore the nexus from different aspects. The current study explored the process of food industries in different sectors regarding water consumption and wastewater generation, both qualitatively and quantitatively. The most recent wastewater treatment methods carried out in different food processing sectors were also reviewed. This review provided a comprehensive literature for choosing the optimum scenario of water and wastewater management in food processing industries. 相似文献
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制革废水及其处理现状综述 总被引:1,自引:0,他引:1
本文介绍了制革废水的来源和特点:制革废水是有色、有臭味、有毒性的高浓度有机废水,废水排放不连续、不均匀,水质差别很大;还介绍了国内制革废水处理技术的发展现状。最后,提出推行清洁生产,开展废水资源化,并用高效的末端治理方法处理废水,是制革工业水污染控制的出路。 相似文献
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通过节水和清洁生产工艺的改造,加强用水管理,研制高效节水节能设备,建立废水治理与利用系统等措施,达到了节水和清洁生产的目的。在相同产量下节约生产用水55%以上,废水排放总量减少60%以上,减少硫化物80%、CODCr58%、BOD567%及污泥60%~65%,皮革产品各项技术指标达到相关标准,感官质量满足国内外市场的要求。 相似文献
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针对发酵甘油生产过程中的淀粉质原料浸泡废水固体悬浮物质量浓度高和提取废水难以生物降解的特性,分别采用沉淀法和Fenton试剂法对其进行预处理,再与发酵废水混合后,采用UASB-SBR组合工艺进行处理.结果表明:当进水COD为6 800-7 360 mg/L时,处理后出水COD可降到100 mg/L以下,出水NH3-N降到15 mg/L以下,系统出水可以达标排放. 相似文献