CHAOZhen,HANHong-bo,CHENSi-yuan,et al.HPB Process Applied In-situ Capacity Expansion and Reconstruction of a WWTP[J].China Water & Wastewater,2023,39(20):98-103.
HPB Process Applied In-situ Capacity Expansion and Reconstruction of a WWTP
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第20期
Page:
98-103
Column:
Date of publication:
2023-10-17
- Keywords:
- high concentration powder carrier bio?fluidized bed; in-situ capacity expansion; overflow pollution; renovation without water suspension
- Abstract:
- In order to eliminate the overflow pollution of the pipe network outside the plant in Jiangsu Province, a wastewater treatment plant (WWTP) is facing the requirements of promoting the treatment capacity from 3.0×104 m3/d to 4.0×104 m3/d, and solutions with short construction period, small land occupation, low investment and low operation cost. In view of the above requirements, high concentration powder carrier bio-fluidized bed (HPB) technology is adopted to carry out in-situ expansion and reconstruction of the WWTP. The transformation results show that the HPB technology has greatly increased the wastewater treatment capacity as stably above 4.0×104 m3/d, the main effluent quality indexes meet the discharge standards of COD≤30 mg/L, NH3-N≤1.5 mg/L, TN≤10 mg/L, and TP≤0.3 mg/L, respectively. Without increasing land occupation and without water suspension throughout the whole process, the total construction period of the reconstruction is only 85 days. Compared with pre-renovation, the dosage of carbon source is reduced by 50 mg/L, and the operating cost is saved by 0.09 yuan/m3.
Last Update:
2023-10-17