LIU Xiao-lei,XIAO Li-ting,HAO Ming-xing.Engineering Application of Municipal Wastewater Treatment Plants Effluent Reused for Supplementary Water of District Heating Network[J].China Water & Wastewater,2021,37(4 4):20-25.
Engineering Application of Municipal Wastewater Treatment Plants Effluent Reused for Supplementary Water of District Heating Network
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
4 4
Page:
20-25
Column:
Date of publication:
2021-02-17
- Keywords:
- urban district heating network; supplementary water; reuse of drainage of municipal wastewater treatment plant; recirculating cooling water
- Abstract:
- Demand for supplementary water from district heating (DH) management enterprises and relevant domestic engineering cases were investigated, and thus it was suggested that the treated drainage of municipal wastewater treatment plant (WWTP), which was satisfied with the first class A criteria of GB 18918-2002, and which met the norms of GB/T 50050-2017, GB/T 19923-2005 and GB/T 29044-2012 simultaneously, could be reused as the supplementary water of DH network. The locations and dimensions of the water treatment projects should correspond to construction programme of the DH network. In order to truly implement energy saving & emission reduction for heating supply in freezing and cold regions in China, DH management enterprises still need monitoring setups for the 24 water quality indices, a new water reuse technology of which processing cost is much lower than the price of tap water for industry use, an application of suitable scale, corrosion and microorganism inhibitors reducing the maintenance expense of the DH network, and a launch of the total life cycle economic assessment for trading off the capital expenditure of pipes against the operating expenses of inhibitors, suiting to the local conditions.
Last Update:
2021-02-17