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介绍了餐厨垃圾碳源化技术,从传统处理技术的不足和碳源产品需求量大且不断增长2方面阐述了碳源化技术的必要性。阐述了餐厨(厨余)垃圾碳源化技术开发及应用研究进展,并以苏州市七子山垃圾填埋场渗沥液处理站餐厨垃圾碳源化技术的中试研究为例,进行餐厨垃圾产酸发酵实验和酸化液作为渗沥液处理碳源的投加实验。结果表明:通过定向产酸,餐厨垃圾的VFAs浓度增加了1倍以上,转化率远远大于传统厌氧发酵工艺。投加酸化液作为碳源后,MBR出水TN浓度从175~275 mg/L下降到10~40 mg/L。 相似文献
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目的对北京市城区餐饮服务业餐厨垃圾的产量、处理等进行调查,为制定餐厨垃圾管理措施提供科学依据。方法对北京市某社区街道的218家餐饮单位进行全面调查。结果 218家餐饮服务单位每日餐厨垃圾总产量为14 822.9kg,其产量与餐饮单位的类别、规模、餐次有关,大型餐饮单位餐厨垃圾产量最高,快餐店和小吃店最低;晚餐餐厨垃圾产量最高,早餐最低。一年中餐厨垃圾产量在11月至次年2月较低,6-9月最高。只有42.2%的餐饮单位对餐厨垃圾进行了分类,厨余垃圾与废弃油脂所占比例分别为85.9%和14.1%。无害化处理的餐厨垃圾占总量的54.1%,其中资源化利用的比例为28.7%。结论北京市某城区的餐饮服务业餐厨垃圾产量较高;餐厨垃圾的无害化处理及资源化利用有待进一步发展。建议从宣传、立法、餐饮业的准入和监管等方面加强餐厨垃圾的源头减量化、分类收集和无害化处理以及资源化利用的目标。 相似文献
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介绍了餐厨垃圾、餐厨废弃油脂定义,论证了餐厨垃圾、餐厨废弃油脂分开管理的必要性;分析了上海市餐厨垃圾、餐厨废弃油脂规范管理经验、运行机制,针对餐厨垃圾、餐厨废弃油脂源头管理、收运和处理管理,提出了相应的建议。 相似文献
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垃圾焚烧飞灰中重金属污染物控制的研究进展 总被引:4,自引:0,他引:4
介绍了垃圾焚烧过程中重金属污染的来源及其在灰渣中的分布,指出垃圾焚烧后重金属主要集中在飞灰中,飞灰的处理是控制重金属污染的关键。并综述了当前国际上有关垃圾焚烧飞灰中重金属的污染控制方法与技术的研究现状。 相似文献
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《Journal of the Academy of Nutrition and Dietetics》2014,114(1):63-71
Foodservice organizations, particularly those in hospitals, are large producers of food waste. To date, research on waste in hospitals has focused primarily on plate waste and the affect of food waste on patient nutrition outcomes. Less focus has been placed on waste generation at the kitchen end of the hospital food system. We used a novel approach to understand reasons for hospital food waste before consumption and offer recommendations on waste minimization within foodservices. A mixed methods ethnographic research approach was adopted. Three New Zealand hospital foodservices were selected as research sites, all of which were contracted to an external foodservice provider. Data collection techniques included document analyses, observations, focus groups with kitchen staff, and one-on-one interviews with managers. Thematic analysis was conducted to generate common themes. Most food waste occurred during service and as a result of overproduction. Attitudes and habits of foodservice personnel were considered influential factors of waste generation. Implications of food waste were perceived differently by different levels of staff. Whereas managers raised discussion from a financial perspective, kitchen staff drew upon social implications. Organizational plans, controls, and use of pre-prepared ingredients assisted in waste minimization. An array of factors influenced waste generation in hospital foodservices. Exploring attitudes and practices of foodservice personnel allowed an understanding of reasons behind hospital food waste and ways in which it could be minimized. This study provides a foundation for further research on sustainable behavior within the wider foodservice sector and dietetics practice. 相似文献
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