compact district heating Articles

  • Class a biosolids production at eastern municipal water district using heat pasteurization

    Since 1998, the Eastern Municipal Water District (District) has developed and successfully operated a heat pasteurization facility to treat extended aeration waste activated sludge (WAS) from the Perris Valley Regional Water Reclamation Facility (PVRWRF). The treatment train uses hot water to sludge spiral heat exchangers and a patented continuous-feed, complete mix pasteurization vessel (heated ...


  • Water, energy and food security in the urban context

    Awareness of the complex relationship between water, energy and food security has grown in recent years. Water is needed for almost all forms of energy production; energy is needed to transport and treat water; and producing food requires both energy and water. These are just a few of the linkages in the so-called energy-water-food nexus. In the coming decades, population growth and social and ...


    By GLOBE Foundation

  • Novel ion-exchange system softens produced water for steam generation

    As California entered a period of severe drought in 2008, the challenges of using thermal methods to extract heavy oil became compounded by the difficulty of securing freshwater sources from which to generate the high-quality steam that these methods require. In an effort to manage the crisis, then-Gov. Arnold Schwarzenegger proclaimed a state of emergency and enacted widespread ...


    By Eco-Tec Inc.

  • Urban sustainability issues — What is a resource-efficient city?

    What is this report about? Policy background Scarcity of natural resources poses a threat to the continued prosperity and well‑being of the world's population. As the global economy and population grows and the standard of living rises, the demand for natural resources increases and this threatens the security of supply. Resources are defined as all inputs into ...

  • Urban sustainability issues — Resource-efficient cities: good practice

    Our current pattern of resource use is leading to the depletion and, consequently, scarcity of natural resources (1), the degradation of ecosystems and volatile and increasing prices of natural resources. On a planet with finite resources, the challenge is to find a way of delivering greater value and more services with fewer inputs (EC, 2011a). Resources are defined as raw materials, such as ...

  • Urban sustainability issues — Enabling resource-efficient cities

    What is this report about? Resource efficiency is now a key objective of the Europe 2020 Strategy. The flagship 'Roadmap to a Resource Efficient Europe' initiative (EC, 2011a) sets out a framework to support a shift towards a resource‑efficient and low-carbon economy in many policy areas. It also gives practical guidance on how to achieve such an economy (EC, 2011b). The Seventh ...

  • NOx in Non-Utility Industries - Part I NOx in Non-Utility Industries - Part I - Air emission origins, best control solutions and monitoring methodology for nitrogen oxides

     Problems with reducing nitrogen oxides (NOx) are widespread in the general process industries. These industries, together with medium size utility and power generators contribute about 15 percent of global NOx emissions. The emission sources addressed include various heaters employed in chemical and petrochemical plants, nitric and sulfuric acid plants, glass furnaces, iron and steel mills, ...


  • Renewable energy marketplace

    ALLU Group markets two types of equipment for use in biomass energy operations. The ALLU Screener Crusher bucket attaches to a front-end loader. The bucket is designed to aerate, crush, screen and mix at one time. The Screener Crusher has a rigid steel frame, onto which horizontally rotating screening and crushing drums are mounted. All the drums rotate in the same direction. There are several ...


    By BioCycle Magazine

  • Stormwater Management for Urban Environments

    IntroductionElmhurst College, a hundred-thirty-five year old private learning institution, is proceeding with a campus redevelopment project that will include a one hundred seventy bed residence hall. In addition, the college continues to be a role model for sustainable site design and an educational resource for both students and the community.The need for additional housing, due to ...


    By Advanced Pavement Technology

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