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首页> 美国卫生研究院文献>Springer Open Choice >Soluble microbial products (SMPs) release in activated sludge systems: a review
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Soluble microbial products (SMPs) release in activated sludge systems: a review

机译：活性污泥系统中的可溶性微生物产物（SMP）释放：综述

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This review discusses the characterization, production and implications of soluble microbial products (SMPs) in biological wastewater treatment. The precise definition of SMPs is open to talk about, but is currently regarded as “the pool of organic compounds that are released into solution from substrate metabolism and biomass decay”'. Some of the SMPs have been identified as humic acids, polysaccharides, proteins, amino acids, antibiotics, extracellular enzymes and structural components of cells and products of energy metabolism. They adversely affect the kinetic activity, flocculating and settling properties of sludge. This review outlines some important findings with regard to biodegradability and treatability of SMPs and also the effect of process parameters on their production. As SMPs are produced during biological treatment process, their trace amounts normally remain in the effluent that defines the highest COD removal efficiency. Their presence in effluent represents a high potential risk of toxic by-product formation during chlorine disinfection. Studies have indicated that among all wastewater post-treatment processes, the adsorption by granular activated carbon combined with biologically induced degradation is the most effective method for removal of SMPs. However, it may be concludes that the knowledge regarding SMPs is still under progress and more work is required to fully understand their contribution to the treatment process.
机译：这篇评论讨论了可溶性微生物产品（SMPs）在生物废水处理中的表征，生产及其意义。 SMP的确切定义尚待讨论，但目前被认为是“通过底物代谢和生物质降解释放到溶液中的有机化合物库”。一些SMP已被鉴定为腐殖酸，多糖，蛋白质，氨基酸，抗生素，细胞外酶以及细胞的结构成分和能量代谢产物。它们不利地影响污泥的动力学活性，絮凝和沉降特性。这篇综述概述了有关SMPs的生物降解性和可治疗性以及工艺参数对其生产的影响的一些重要发现。由于SMP是在生物处理过程中产生的，因此它们的痕量通常会保留在废水中，这定义了最高的COD去除效率。它们在废水中的存在代表着氯消毒过程中形成有毒副产物的高潜在风险。研究表明，在所有废水后处理过程中，颗粒状活性炭的吸附结合生物诱导的降解是去除SMP的最有效方法。然而，可以得出的结论是，关于SMP的知识仍在发展中，需要更多的工作来充分了解其对治疗过程的贡献。

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