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首页> 外文会议>Water Environment Federation 75th annual technical exhibition amp; conference (WEFTEC 2002) >To 'B' or Not to B (Class A), that is the Question: A Utility's Quest to Sustain a Biosolids Market
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To 'B' or Not to B (Class A), that is the Question: A Utility's Quest to Sustain a Biosolids Market

机译：要“ B”还是不“ B”（A类），这是一个问题：公用事业寻求维持生物固体市场

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The combined efforts of this evaluation study establish the need and advantages of attainingrnClass A versus Class B level biosolids treatment. This paper is prepared with utilities inrnmind that are currently attempting to work through this dilemma, with specific emphasis onrnthe cost to benefit of achieving Class A biosolid product for small to medium sized utilities.rnThis paper will focus on the following three considerations of Class A versus B product:rn1) Benefits of the higher level of treatment and improved qualities and characteristics,rn2) Regulatory implications including the advantages and pitfalls, andrn3) Marketability advantages in “recycling”.rnThis study evaluated the improved qualities and characteristics of the Class A residualrnproduct. Biosolids data from two (2) treatment facilities within the same community wererncompared (and will be further analyzed until the completion of this study through Augustrn2002). The second important issue relative to selection of Class A or B biosolids treatment isrnthe current regulatory environment. The current regulatory environment has resulted in a lessrnthan clear picture for many utilities for biosolids management planning, including thernpotential to either severely restrict or prevent the beneficial recycling of biosolids products.rnRecent implications toward biosolids by a number of sources, some unfounded, have resultedrnin additional independent evaluations of the regulations and practices relevant to biosolids.rnFinally, this paper will address the current marketability advantages of the Class A versusrnClass B biosolid. In reviewing the most common disposition methods for Class B biosolidrnproduct generators, the greater majority are limited to utilizing land application, whereas, thernClass A or AA biosolid product generators have a greater opportunity for beneficialrnrecycling.rnThe findings of this paper indicate that the wastewater industry should strongly considerrnbiosolids treatment to Class A levels, if at all possible. The regulatory climate at federal,rnstate, and county levels is a trend of necessitating the higher level of treatment. Depending onrnthe Class A process selected, the cost to achieve Class A level treatment may not bernsignificantly more than the Class B level treatment. The marketability of the Class Arnbiosolid product opens many doors to the utility, including use by the general public. Inrnconclusion, the uncertainty of the current regulatory climate relative to biosolids, along withrnthe increased flexibility and beneficial uses of the Class A product, make the Class Arnbiosolid option a likely part of your utilities future.
机译：这项评估研究的共同努力确立了达到A级与B级生物固体处理的需求和优势。本文是针对目前正在努力解决这一难题的公用事业公司而编写的，其中特别强调了实现中小型公用事业A类生物固体产品的成本效益。本文将重点关注以下三个方面的考虑： B产品：rn1）更高水平的处理带来的好处以及质量和特性得到改善，rn2）监管方面的优势，包括优势和缺陷，rn3）“回收”中的适销性优势。rn本研究评估了A类残留产品的改进的质量和特性。比较了来自同一社区内两（2）个处理设施的生物固体数据（并将进行进一步分析，直到完成本研究直到2002年8月）。与选择A类或B类生物固体处理有关的第二个重要问题是当前的监管环境。当前的监管环境使许多用于生物固体管理规划的公用事业公司的情况还不够清晰，包括严重限制或阻止生物固体产品的有益循环的潜力。rn许多来源对生物固体的最新影响（有些没有根据）导致了更多最后，本文将介绍A类生物安全性与B类生物固体的可销售性方面的优势。在回顾B类生物固体产物产生器最常用的处置方法时，绝大多数局限于土地利用，而A类或AA类生物固体产物产生者具有更大的有益回收利用机会。本文的发现表明，废水处理行业应如果可能的话，强烈考虑将生物固体治疗达到A级水平。联邦，州和县三级的监管环境是一种趋势，需要更高的治疗水平。根据所选的A类工艺，达到A级处理的成本可能不会比B级处理高很多。 Arnbiosolid类产品的适销性为公用事业打开了许多大门，包括公众使用。结论是，相对于生物固体的当前监管环境的不确定性，以及A类产品灵活性的提高和有益用途的增加，使Arnbiosolid选件成为您公用事业未来的一部分。

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