XUZhensheng.Engineering Practice of Wastewater Treatment and Zero-liquid Discharge in a Synthetic-biology Eco-industrial Park[J].China Water & Wastewater,2026,42(8):57-64.
合成生物产业生态园废水处理及零排放工程实践
- Title:
- Engineering Practice of Wastewater Treatment and Zero-liquid Discharge in a Synthetic-biology Eco-industrial Park
- Keywords:
- synthetic biological wastewater; zero-liquid discharge; quality-based segregation; membrane concentration; evaporation and crystallization
- 摘要:
- 随着合成生物技术的快速发展，合成生物产业排放的废水因成分复杂、处理难度大，已成为制约产业绿色发展的瓶颈。针对国内合成生物废水零排放技术面临的挑战，以北方某合成生物产业生态园的废水处理及零排放工程为例，构建了“分类分质预处理+生化深度处理+膜浓缩+分盐蒸发结晶”的全流程技术体系。该工程处理规模达14.40万m3/d，总投资32.54亿元。通过沼气利用、中水回用及盐硝销售等收益显著降低了综合费用，实际处理成本约33.53元/m3。
- Abstract:
- With the rapid advancement of synthetic biotechnology, wastewater generated by the synthetic-biology industry has become a bottleneck for sustainable development due to its complex composition and high treatment difficulty. To address the technical challenges of achieving zero-liquid discharge for such wastewater in China, this paper examines a full-scale wastewater treatment and zero-liquid discharge project located in a synthetic-biology eco-industrial park in northern China. The project implements an integrated technical system consisting of “quality-based segregation and pretreatment + advanced biochemical treatment + membrane concentration + salt separation evaporation and crystallization”. The project has a design treatment capacity of 14.40×104 m3/d, with a total investment of 3.254 billion CNY. Through significant revenue generated from biogas utilization, reclaimed water reuse, and sales of sodium chloride and sodium sulfate, the comprehensive costs have been notably reduced, resulting in an actual treatment cost of approximately 33.53 CNY/m3.
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