Green Technologies for Wastewater Treatment: Energy Recovery and Emerging Compounds Removal
Green Technologies for Wastewater Treatment: Energy Recovery and Emerging Compounds Removal
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DOI：
10.1007/978-94-007-1430-4
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
G. Lofrano
中科院分区：
文献类型：
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作者：
G. Lofrano
化学辅助一级沉淀（CAPS）包括添加化学品，以增加城市污水的混凝，絮凝和沉淀。可以开发CAPS工艺，以提高初级沉淀的效率，并避免对生物处理工艺的任何干扰。CAPS的应用特别适合作为城市污水处理厂（UWWTPs）升级改造的技术。事实上，CAPS不需要任何进一步的重大结构干预（因此节省了投资成本和领土部分）。本文的目的是强调CAPS作为UWWTP中可用的绿色化学选择的作用。特别是，本章的一个具体目标是集中注意力的能量的重要性，CAPS由于其能力，以增加生产的初级污泥，从而能源生产与厌氧消化分别处理初级和二级污泥。通过一个包含经济评价的典型案例研究，讨论了CAPS应用的能量便利性和“绿色绿色”倾向。
Chemically Assisted Primary Sedimentation (CAPS) consists of adding chemicals in order to increase the coagulation, flocculation and sedimentation of raw urban wastewater. The CAPS process can be developed in order to increase the efficacy of primary sedimentation as well as avoid any interference with biological treatment processes. The application of CAPS is particularly suitable as a technique for the upgrading of urban wastewater treatment plants (UWWTPs). In fact, CAPS does not require any further significant structural intervention (so saving investment costs and territory portions). The aim of this contribution is to emphasise the role of CAPS as a green chemistry option available in a UWWTP. In particular, a specific aim of the chapter is to focus the attention on the energetic importance of CAPS due to its capacity to increase the production of the primary sludge and consequently the energy production with an anaerobic digestion treating separately primary and secondary sludge. The energetic convenience and “green” propensity of the application of CAPS is discussed by means of the presentation of a paradigmatic case study containing economic evaluations, as well.