Application of digital technologies about water network in steel industry

To improve the efficiency of water use and reuse, a digitalized water network system was implemented in a steel industrial complex. The system consisted of four parts: online instrument and sensing devices, programmable logic controller, data communication network and control center based on expert knowledge. The system achieved real-time monitoring, diagnosis, and early warning of cooling water system using data collected inline, and enabled data connectivity and transmission of self-developed software applications on personal computer. This research used a steel enterprise as a case study. After the analysis of its cooling water system and water-saving potential using water balance test, a digitalized water network was evaluated and implemented, and we believe this network can be suitable for steel industry in general.     

Current EU-27 technical potential of organic waste streams for biogas and energy production

Anaerobic digestion of organic waste generated by households, businesses, agriculture, and industry is an important approach as method of waste treatment – especially with regard to its potential as an alternative energy source and its cost-effectiveness. Separate collection of biowaste from households or vegetal waste from public green spaces is already established in some EU-27 countries. The material recovery in composting plants is common for biowaste and vegetal waste. Brewery waste fractions generated by beer production are often used for animal feeding after a suitable preparation. Waste streams from paper industry generated by pulp and paper production such as black liquor or paper sludge are often highly contaminated with toxic substances. Recovery of chemicals and the use in thermal processes like incineration, pyrolysis, and gasification are typical utilization paths. The current utilization of organic waste from households and institutions (without agricultural waste) was investigated for EU-27 countries with Germany as an in-depth example. Besides of biowaste little is known about the suitability of waste streams from brewery and paper industry for anaerobic digestion. Therefore, an evaluation of the most important biogas process parameters for different substrates was carried out, in order to calculate the biogas utilization potential of these waste quantities. Furthermore, a calculation of biogas energy potentials was carried out for defined waste fractions which are most suitable for anaerobic digestion. Up to 1% of the primary energy demand can be covered by the calculated total biogas energy potential. By using a “best-practice-scenario” for separately collected biowaste, the coverage of primary energy demand may be increased above 2% for several countries. By using sector-specific waste streams, for example the German paper industry could cover up to 4.7% and the German brewery industry up to 71.2% of its total energy demand.     

循环经济在养猪业污染及生态修复中的应用

循环经济在发达国家已取得成功经验,我国则更多地停留在概念层次上.简要介绍福建省规模化养猪场带来的环境污染问题以及造成污染的生产结构原因,并以循环经济理念提出目前可行的生态修复防治与利用措施,它是利用生态系统原理,在大的范围内组织和实施的一项生态工程,系统中物流、能流、经营、组织、管理和所渗透的技术上更加高效,是当前和将来养猪业污染综合治理的重要途径之一,实践了生态的闭合循环,具有很大发展潜力.      

政府须采取有效政策措施促进环保产业发展

本文提出我国是一个发展中国家,环保产业发展滞后,政府应采取有效措施,在促进环保产业发展中发挥积极作用,提高我国环保产业的国际竞争力,促进环保产业的发展。     

建筑安全管理研究的现状与展望

在世界大多数国家,建筑业是重要的国民经济生产行业,但是由于建筑业的特殊性,其安全和健康状况一直不能令人满意,并且严重制约了建筑业劳动生产率和产品质量的提高,影响了建筑业的声誉和可持续发展。本对国内外建筑安全管理领域的最新研究成果进行了综述和总结,并在此基础上提出了今后需要重点研究和关注的课题。     

21世纪前期长江流域粮食产业发展对策

长江流域光、热、水、土等农业资源时空组合优势明显,土地自然生产力较高,粮食生产在全国占有重要地位。21世纪初中国加入WTO以后,长江流域作为“大米带”的优势将更为明显。长江流域粮食产业发展除应考虑国家宏观发展战略,需要采用与国家粮食产业发展相协调的政策体系外,还应解决自身存在的总量不稳、产业化程度低、产业效益差以及品种结构不合理等问题。     

生态示范区建设中生态型第三产业发展探讨——以江苏省吴县市、邗江县、邳州

文中分析了在区域城市化水平初级阶段选择以生活服务基础性第三产业,在加速发展阶段选择生产服务性行业,在城市化稳定发展阶段,选择新兴技术服务行业不断升级的产业发展模式。本文以江苏省吴县市、邗江县、邳州市三个不同经济水平的地区为例做了详细分析。     

我国城市生活垃圾产业市场化探讨

本文通过对我国城市生活垃圾处理现状、原则等进行分析,提出只有大力发展垃圾产业,才能根本解决我国城市垃圾问题。并提出了我国垃圾产业市场的形成条件、构成和所应采取的策略。     

给水工业的特性及其可持续发展

给水工业是关系到社会生产和人民生活的基础性行业。长期以来,给水工业在平衡自身经济效益与社会用水效益过程中,一直以满足于后者的要求为主导,造成了我国当前给水工业发展中的举步维艰。本文以可持续发展的思想为基础,提出了保证给水工业可持续发展的基本原则,并分析了给水工业的特性及世界范围内的市场化趋势的原因。这些研究为制定我国水工业发展的政策和管理体系提供了理论基础。     

生态工业理论及其模式实现途径探讨

生态工业是一种全球新兴的工业可持续发展模式,本文着重研究、探讨了生态工业的缘起、生态工业的概念和内涵以及生态工业的理论基础,并就其实现途径提出了具体的建议。