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首页> 外文会议>International Conference on Advances in Building Technology Vol.2, Dec 4-6, 2002, Hong Kong, China >EFFECTIVE WASTEWATER TREATMENT / RECYCLING TECHNOLOGIES FOR CONSTRUCTION INDUSTRY― A LOCAL EXPERIENCE
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EFFECTIVE WASTEWATER TREATMENT / RECYCLING TECHNOLOGIES FOR CONSTRUCTION INDUSTRY― A LOCAL EXPERIENCE

机译：建筑业有效的废水处理/循环利用技术-本地经验

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摘要

During the construction / demolition period of a site, various types of wastewater will be generated and discharged. These various types of wastewater are, but not limited to, water from bore piling operation, rain water and ground water collected, spray water for dust removal, truck cleaning water, sewage and kitchen wastewater, etc. In most of the construction sites, government foul sewers will not be connected to the site premises during the construction period, hence the wastewater will have to be discharged to storm water drain, inland and coastal waters, etc. In this regard, the quality of discharged effluent will be controlled to very stringent limits, such as suspended solids (SS) to 30mg/L, oil and grease (O&G) to 20mg/L, biochemical oxygen demands (BOD_5) to 20mg/L, chemical oxygen demands (COD) to 80mg/L, etc. Without proper treatment, the discharged wastewater will exceed the discharge limits, resulting from not only polluting the environment, but also leading to heavy penalty to the construction companies. This paper will focus on presenting appropriate technologies to tackle different types of wastewater from construction sites. They are: 1. Effective chemical coagulation and sedimentation system for treating high solids content construction runoff / wastewater from construction activities; 2. Biological wastewater treatment system in continuous operation for treating organic waste bearing wastewater from site office toilets, etc; 3. Biological wastewater treatment system in batch operation for treating highly polluted organic waste bearing wastewater from kitchens and canteens; 4. Automatic wheels washing machine for cost effective management of truck wheels cleaning process.
机译：在场地的建设/拆除期间，将产生并排放各种类型的废水。这些各种类型的废水包括但不限于打桩操作产生的水，收集的雨水和地下水，用于除尘的喷雾水，卡车清洁水，污水和厨房废水等。在大多数建筑工地中，政府在施工期间，污浊的下水道将不会与工地相连，因此必须将废水排放到雨水排水系统，内陆和沿海水域等。在这方面，将控制排放废水的质量到非常严格的水平限值，例如悬浮固体（SS）到30mg / L，油脂（O＆G）到20mg / L，生化需氧量（BOD_5）到20mg / L，化学需氧量（COD）到80mg / L等。如果进行适当的处​​理，排放的废水将超过排放限值，这不仅会污染环境，还会对建筑公司造成重罚。本文将重点介绍适用的技术，以处理建筑工地产生的不同类型的废水。它们是：1.有效的化学混凝和沉淀系统，用于处理建筑活动中高固体含量的建筑径流/废水； 2.连续运行的生物废水处理系统，用于处理现场办公室厕所等带有有机废物的废水； 3.分批操作的生物废水处理系统，用于处理厨房和食堂的高污染有机废物废水； 4.自动轮毂清洗机，可有效管理卡车轮毂的清洁过程。

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