美国工业废液地下灌注与控制技术介绍

工业废液的地下灌注及控制技术是当前环境保护和工业经济方面日益受到关注的一项新技术。作者一行于2006年7月～9月前往美国考察了废液地下灌注技术,考察团先后到美国环保署(EPA)、杜邦公司Delisle工厂、Geotrans模型公司和杜邦钛白项目部进行了参观和交流,并对美国地下灌注的应用情况、法律控制、主要污染防治措施、可能的环境影响、相关分析技术、扩散模拟和预测等方面进行了较深入的了解。     

环境监测实验室的废液处理

环境监测实验室的废液一直没有进行规范化管理，随着环境监测标准化站的建设和实验室认可工作的开展，环境监测实验室的废液污染应引起重视。文章简要阐述了环境监测实验室废液的来源及废液的收集原则，详细介绍了环境监测实验室常用有机溶剂的回收技术，提出了含不同污染物的实验室废液的处理方法。     

实验室常见废液处理方法介绍

讨论实验室废液的来源和对环境的危害性，并着重对实验室废液的分类、处理方法及注意事项进行探讨。     

50所长江沿岸高校实验废液排放情况调查与分析

目的：了解长江沿岸高校实验室废液排放情况及现状。方法：以问卷调查方式，对长江沿岸高校实验室操作程序、管理制度、废液排放情况进行调查。结果：38％的高校管理制度不完善，68％的高校实验操作不规范，44％的学校环保意识宣传不到位，62％的高校实验废液未处理就直接排放。结论：高校实验室正成为长江生态环境恶化的污染源．我国应制定和完善相关法律，加强实验废液处理，杜绝高校成为长江水质污染新的根源。     

非常规油气田开发作业废液处理站选址模型研究

针对作业废液处理站选址问题，通过分析长庆某油气田油气井点位分布、废水产量，注水点位置 信息，运用Python、Arcgic、Excel等分析工具，以作业废液处理站建设成本与作业废液的运输成本之和最小为目标函数，节点单日作业废液产量之和小于等于作业废液处理站日处理量为主要约束条件，在路径不明的情况 下，修正路径距离，建立废液处理站选址模型并进行求解。模型运行结果表明，通过选址模型可以得出作业废 液处理站的最优坐标点位置，随着设定作业废液处理站数量增加，运输费用逐渐降低，单座处理站规模降低，但运算量也随之增大，选址模型对非常规油气田开发作业废液处理站的选址具有指导意义。     

利用工业废液废渣生产菌体蛋白饲料的研究

利用工业废液废渣生产菌体蛋白饲料的研究孙荣高（兰州市环境保护研究所兰州７３００００）近年来利用废弃资源，如食品及轻工行业生产的废液废渣及农产品下脚料来生产菌体蛋白粉和菌体蛋白饲料的开发研究越来越受到重视。该技术的生产有以下优点：①利用废弃资源生产菌体...     

含铀TBP/OK废液相分离技术研究

为探究含铀TBP/OK废液高效低成本处理技术,采用磷酸加合水解法开展TBP/OK废液相分离技术研究,得出加合反应及加合物水解反应最佳条件试验参数。结果表明,采用磷酸加合水解法将煤油和TBP依次从TBP/OK废液中分离出来,能大幅降低放射性废液体积,分离后煤油和TBP实现分类处理能有效降低放射性废液处理难度。     

缫丝废液的综合利用

缫丝废液中含有丰富的蛋白质，直接排入严重污染环境，废液中的蛋白质能用化学或生物化学方面水解成有用的氨基酸，后者是化学，医药，食品，饲料工业的重要原料，本文报道了缫丝废液中蛋白质酸水解和酶水解的研究结果以及部分酶水解的规律。     

蒸氨废液的综合治理及利用

本文分析了蒸氨废液综合治理及利用中遇到的技术问题，提出了解决问题的措施，以及综合利用的方向。     

以啤酒废液为原料的植物叶肥

本品是一种以啤酒废液为原料，配以多种植物所需的常量元素和微量元素而制成的植物叶肥。本品较好地利用了啤酒工厂大量存在的啤酒废液，既减少了污染，又为农业提供了一种新型、广谱的植物叶肥以啤酒废液为原料的植物叶肥     

碱性蚀刻废液的再生回用与铜回收技术

介绍了一种革取技术，可在生产过程中处理印制线路板生产的碱性蚀刻废液，使之脱铜后再生，实现碱性蚀刻废液的循环使用；运用反革取技术使苹取剂复活循环使用；反革取提取到的硫酸铜经电解为电解铜，电解液可循环使用。     

Overview of household solid waste recycling policy status and challenges in Malaysia

With the annual increase in waste generation and heavy reliance on landfilling as disposal, method in Malaysia, it is just a matter of time before significant problems of space limitations, health, and environmental issues hit the nation severely. This paper attempts to develop an overview on solid, waste recycling in Malaysia at the most basic level of a community or nation which is the household, unit. Households are the main primary source of municipal solid waste in Malaysia, consisting of, recyclable materials at most 70% to 80% of the total waste composition as found placed in the, landfills. Overview on the existing household solid waste recycling policy and program status in, Malaysia is relevant in enhancing solid waste management measure from recycling perspective. Despite the high potential and opportunities for solid waste recycling, wastes are still simply being, dumped in an open area of ground without any attempt for recovery and recycling. Comparing to, recycling rates of neighboring countries, Malaysia is falling back at merely 5% which proves how, uncommon recycling practice is. The government is committed to significantly improve the national's, solid waste management services especially in waste minimization. Fortunately the emphasis on, recycling as a sustainable waste management strategy has taken a shift in paradigm as wastes, separation and recycling are part of the major changes in the current policy implementation. With, issues and challenges in recycling practice that were highlighted in this context especially from the, aspects of information availability and other loopholes within solid waste management policies and, related recycling program within the community, the question on whether the goals in 2020 can be, met remains unsure of but there is a possibility for a successful implementation of sustainable solid, waste management particularly in recycling.     

Waste scavenging in Third World cities: A case study in Ilorin, Nigeria

Solid waste poses a serious problem to government agencies and people in third world cities. Recycling as a way of managing waste has received relatively little attention. This paper examines the role of waste scavengers in the waste recycling process. The preliminary findings reported here indicate that the waste scavenger could be incorporated formally into the recycling process. Using plastic waste as an example, it is demonstrated that such recycling is economically viable.     

Medical waste management in Korea

The management of medical waste is of great importance due to its potential environmental hazards and public health risks. In the past medical waste was often mixed with municipal solid waste and disposed of in residential waste landfills or improper treatment facilities (e.g. inadequately controlled incinerators) in Korea. In recent years, many efforts have been made by environmental regulatory agencies and waste generators to better manage the waste from healthcare facilities. This paper presents an overview of the current management practices of medical waste in Korea. Information regarding generation, composition, segregation, transportation, and disposal of medical wastes is provided and discussed. Medical waste incineration is identified as the most preferred disposal method and will be the only available treatment option in late 2005. Faced with increased regulations over toxic air emissions (e.g. dioxins and furans), all existing small incineration facilities that do not have air pollution control devices will cease operation in the next few years. Large-scale medical waste incinerators would be responsible for the treatment of medical waste generated by most healthcare facilities in Korea. It is important to point out that there is a great potential to emit air toxic pollutants from such incinerators if improperly operated and managed, because medical waste typically contains a variety of plastic materials such as polyvinyl chloride (PVC). Waste minimization and recycling, control of toxic air emissions at medical waste incinerators, and alternative treatment methods to incineration are regarded to be the major challenges in the future.     

Phosphorus recovery and recycling from waste: An appraisal based on a French case study

Phosphate rocks, used for phosphorus (P) fertilizer production, are a non-renewable resource at the human time scale. Their depletion at the global scale may threaten global food and feed security. To prevent this depletion, improved P resource recycling from food chain waste to agricultural soils and to the food and feed industry is often presented as a serious option. However, waste streams are often complex and their recycling efficiency is poorly characterized. The aim of this paper is to estimate the P recovery and recycling potential from waste, considering France as a case study. We assessed the P flows in food processing waste, household wastewater and municipal waste at the country scale using a substance flow analysis for the year 2006. We also quantified the P recycling efficiency as the fraction of P in waste that ultimately reached agricultural soils or was recycled in the food and feed industry. Efforts were made to limit data uncertainty by cross-checking multiple data sources concerning P content in waste materials. Results showed that, in general, P recovery in waste was high but that the overall P recycling efficiency was only 51% at the country scale. In particular, P recycling efficiency was 75% for industrial waste, 43% for household wastewater and 47% for municipal waste. The remaining P was discharged into water bodies or landfilled, causing P-induced environmental problems as well as losses of nutrient resources. Major P losses were through food waste (which amounted to 39% of P in available food) and treated wastewater, and the findings were confirmed through cross-checking with alternative data sources. Options for improving P resource recycling and, thereby, reducing P fertilizer use were quantified but appeared to be less promising than scenarios based on reduced food waste or redesigned agricultural systems.     

氧化铝行业水污染控制措施探讨

根据氧化铝行业生产用水及排污特点,结合某氧化铝生产企业生产废水的处理实践,推荐采用逆向洗涤赤泥和氢氧化铝,节约用水量;综合利用赤泥洗液和含碱废水;对生产用水设置循环水系统和二次利用水系统;设置生产废水处理站,氧化铝系统和热电厂的生产系统排水、循环水系统的排污水,以及化验等废水全部排入生产废水处理站处理,废水经处理后作为二次利用供水返回生产系统使用,通过综合利用生产废水,可以实现厂区废水的零排放,节约资源的同时,提高清洁生产水平,避免对环境造成污染。     

危险废物处置中心物化处理浅析

介绍了一套危险废物处置中心物化处理系统的工艺原理、工艺流程（废酸碱及重金属废液处理、废乳化液处理）,与国内类似企业物化工艺进行对比,分析了系统的优缺点。结合国内危险废物处置现状和运行管理经验,进行了优化完善,进一步提高系统的经济性和稳定可靠性,为同类企业提供参考和借鉴。     

A comprehensive waste collection cost model applied to post-consumer plastic packaging waste

Post-consumer plastic packaging waste (PPW) can be collected for recycling via source separation or post-separation. In source separation, households separate plastics from other waste before collection, whereas in post-separation waste is separated at a treatment centre after collection. There are also two collection schemes, either curb side or via drop-off locations. These different schemes have impact on total costs of collection at the municipal level. It can also influence the facility choices and network design. Therefore, a method which can compare costs of various collection schemes is needed.A comprehensive cost model was developed to compare costs of municipal collection schemes of PPW. The ‘municipal waste collection cost model’ is based on variables including fixed and variable costs per vehicle, personnel cost, container or bag costs as well as on emission costs (using imaginary carbon taxes). The model can be used for decision support when strategic changes to the collection scheme of municipalities are considered. The model takes into account the characteristics of municipalities, including urbanization degree and taxation schemes for household waste management.The model was applied to the Dutch case of post-consumer plastic packaging waste. Results showed that that in general post-separation collection has the lowest costs and curb side collection in urban municipalities without residual waste collection taxing schemes the highest. These results were supported by the conducted sensitivity analysis, which showed that higher source separation responses are negatively related to curb side collection costs. Greenhouse gas emission costs are a significant part of the total costs when collecting post-consumer plastic packaging waste due to the low density to weight ratio of the materials collect. These costs can amount to 15% of the total collection costs.     

Recycling for small island tourism developments: Food waste composting at Sandals Emerald Bay,Exuma, Bahamas

The ability for small islands to meet sustainability goals is exacerbated by the costs of transporting goods on, and then, wastes off the islands. At small scales, recycling can be prohibitive and complicated by labor costs; the need to profitably recycle and manage solid waste output from tourism is complicated by scale and available technologies. A multi-year study documents the amount of solid waste generated on Great Exuma (Exuma), The Commonwealth of The Bahamas since 2010 with one year of benchmarking, then limited recycling of food waste generation by an all-inclusive resort, Sandals Emerald Bay (SEB). For the island of Exuma, the rapid increase in the rate of accumulation of solid waste associated with a large destination resort has led to an increase in pests such as rats and flies, along with an increased occurrence of fires associated with unburied solid waste. Solid waste has accumulated faster than the island solid waste management can absorb. SEB kitchen and hotel operations contributes an estimated 36% of all solid waste generated on the island, about 1752 t¹ out of a total of 4841 t generated on the island in 2013 (exclusive of vegetation waste). Based on 4 weeks of benchmarking, 48.5% of all the waste coming out of the SEB resort is compostable, organic waste, but waste composition varies widely over time. Exuma Waste Management (EWM) and Recycle Exuma (RE), both privately-held Bahamian businesses, worked for one year (2012–2013) with SEB resort to implement a benchmarking and pilot recycling project to meet Earth Check green resort certification requirements. This paper outlines the costs and resources required for food waste recycling and some barriers to implementing more effective solid waste management for the tourism industry on small islands.     

中国废弃手机回收的管理策略研究

作为“城市矿产”的典型代表，废弃手机因其废弃数量大、稀贵金属品位高等特性而备受关注，但在推进废弃手机回收过程中存在诸多问题。本文以推动产业发展为立足点，梳理了影响废弃手机回收的两级制衡要素，通过构建GREY-DEMATEL模型，定量评估各要素对废弃手机回收的影响程度并确定优先等级。其中，完善废弃手机回收的管理制度及相应的经济扶持政策成为短期内应着力解决的核心问题，从长期发展来看，废弃手机的前端收集应成为产业关注的重点。基于此，本文立足于废弃手机回收的短期目标及长远发展，分别提出相应的管理策略，为再生资源产业的良性发展提供对策建议。