废水处理能耗的表征 - 第1部分:第1部分 - 生物过程

[中文适用范围]： 本文件规定了工业生物废水处理系统消耗能量的定量表征的一般原则，并提供了指导。 它的目的不是表征处理污染物的去除性能或工艺可靠性或选择废水处理系统时的任何其他考虑因素。 本文件包括生物处理系统的以下子系统： ——生物反应器，可以是悬浮生长或固定膜工艺或其组合，并且可以包括厌氧、缺氧和/或需氧池和/或区域。 — 固液分离过程，如沉淀、浮选或膜过滤，用于在排放到下游过程之前净化水，这也可能涉及将分离的固体作为污泥返回生物反应器。 — 用于此处列出的子系统内部和之间的水循环、混合和空气供应的任何泵、鼓风机和混合器。 — 加热或冷却水进行处理。 本文件不包括生物处理系统的以下子系统： ——废水给水泵。 — 预处理系统，就本文件而言，还包括初步和初级处理过程，例如但不限于筛选、沉淀、溶气浮选、化学氧化、油分离。 — 后处理过程，例如但不限于消毒、海水淡化、离子交换、污泥处理和处理系统。 — 现场照明或办公室运营中涉及的任何能源消耗。 — 从厌氧反应器生产沼气等过程中回收能量。 过滤过程有时是生物处理过程的一部分，有时是后处理的一部分，在本文件中单独提及。 [外文原描述]： This document sets out the general principles for, and provides guidance on, the quantitative characterization of the energy consumed by industrial biological wastewater treatment systems. It does not aim to characterize the treatment pollutants removal performance or process reliability or any other consideration in the selection of a wastewater treatment system. This document includes the following sub-systems of biological treatment system: — Biological reactors, which might be suspended growth or fixed film processes or a combination thereof, and can include anaerobic, anoxic and/or aerobic tanks and/or zones. — Solid-liquid separation processes such as sedimentation, flotation, or membrane filtration, used for clarification of the water before discharge to downstream processes, which can also involve the return of a the separated solids as sludge back to the biological reactor. — Any pumps, blowers and mixers for water circulation, mixing and air supply in and between the sub-systems listed herein. — Heating or cooling of the water for treatment. This document does not include the following subsystems of the biological treatment system: — Wastewater feed pumps. — Pre-treatment systems, which for the purposes of this document also include preliminary and primary treatment processes, such as but not limited to, screening, sedimentation, dissolved air flotation, chemical oxidation, oil separation. — Post-treatment processes, such as but not limited to, disinfection, desalination, ion exchange, sludge treatment and handling systems. — Site lighting or any energy consumption involved in office operation. — Energy recovery from processes such as anaerobic reactors producing biogas. Filtration processes, which are sometimes part of the biological treatment process and at other times part of the post treatment, are referred to separately within this document.