美国密西西比国际水务公司 Bruce Wetmore（布鲁斯） : 干馏处理污泥技术为污水 处理厂解决污泥难题 干馏处理污泥技术为污水处理厂解决污泥难题 Dry Distillation Sludge Treatment Technology Solves Wastewater Treatment Plants’ Sludge Difficulties 摘要：污泥处理难，究竟难在哪？传统的污泥处理方法有填埋、堆肥、土地利用、制造建材、干化焚烧、发电厂掺烧、水泥窑协同处理等等。为什么有如此多的处理方法，而污泥处理却成为全国性难题呢？如果对污泥问题全面分析，就会发现并不是污泥本身难处理，而是传统的污泥处理技术难实施！ 以往的研究过多地xx污泥本身的处理，缺乏从污水处理厂的角度去研究污泥处理需要克服的技术和非技术难题！作为污泥处理的责任实体，当一个污水处理厂计划进行污泥处理时，他们必须要解决污泥处理的独立性、经济性，处理过程可控性、稳定性。 干馏处理污泥技术解决了污水处理厂处理污泥所面临的操作独立性、过程可控性、技术稳定性、项目经济性等难题： 干馏处理污泥在污水处理厂内xx独立实施，不需要寻求或依赖外界的合作；避免了立项、环评、审批等繁杂的手续。污水处理厂对污泥处理的全过程具有可控能力。 干馏处理污泥不受污泥含水率的影响；不受外部条件、环境、气候等方面因素制约和影响；污泥系统能够连续稳定运行；副产品生物有机碳用途广泛，且能够长期保存。 干馏法处理污泥是在全封闭状态下进行，热损失小；制成的生物炭出售（被回收）可获利；冷凝水回收利用可节约水费。 关键词：污水处理厂、污泥处理、干馏、生物碳、热解、碳化
Abstract: Sludge treatment is difficult, but what is actually difficult about it? Traditional sludge treatment methods include landfill, composting, land application, conversion to construction materials, dehydration and incineration, co-firing power plants, cement kiln co-processing treatment etc. With so many treatment methods, how is sludge treatment still a national dilemma? If sludge treatment problems are comprehensively analyzed it becomes clear that the issue is, rather than sludge being difficult to treat, traditional sludge treatment technologies are difficult to implement. Previous studies have focused too much on the treatment of sludge itself, lacking the perspective of wastewater treatment plants’ specific requirements, and overcoming their technical and non-technical difficulties. When planning to conduct sludge treatment, as the party responsible for sludge treatment, a wastewater treatment plant must address the issues of sludge treatment system independence, economy, process controllability and stability. Dry Distillation Sludge Treatment Technology has solved wastewater treatment plants’ various difficulties related to operational independence, process controllability, technical stability, project economy etc. Dry Distillation Sludge Treatment facilities are entirely independent within the wastewater treatment plant, with no need to seek out or depend on external cooperation; project proposals, environmental impact assessments, approvals and other complex procedures are avoided. Wastewater treatment plants retain control over the entire sludge treatment process. Dry Distillation Sludge Treatment is unaffected by water content, external conditions, environment, climate and other such constraints and influences; the sludge system is capable of stable operation; the process by-product, organic bio-carbon, has extensive applications and tolerates prolonged storage. Application of Dry Distillation Sludge Treatment is conducted in fully enclosed conditions, heat loss is minimal, produced bio-carbon sale (reclaimed) is profitable, condensed water is recycled and reused to save water costs. Key Words: WASTEWATER TREATMENT PLANT, SLUDGE TREATMENT, DRY DISTILLATION, PYROLYSIS, BIO-CARBON, THERMAL CRACKING, CARBONIZATION. |
