评价厌氧膜生物反应器处理乳品加工废水：元素流、生物能源生产和 CO 排放减少。
Evaluation of anaerobic membrane bioreactor treating dairy processing wastewater: Elemental flow, bioenergy production and reduction of CO emission.
机构信息
Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan.
Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan; Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China.
出版信息
Bioresour Technol. 2023 Oct;385:129342. doi: 10.1016/j.biortech.2023.129342. Epub 2023 Jun 20.
The management of dairy processing wastewater (DPW) must address water pollution while delivering renewable energy and recovering resources. A high-rate anaerobic membrane bioreactor (AnMBR) was investigated for treating DPW, and the system was evaluated in terms of elemental flow, nutrient recovery, energy balance, and reduction of CO emission. The AnMBR system was superior in terms of both methanogenic performance and efficiency of bioenergy recovery in the DPW treatment, with a high net energy potential of 51.4-53.2 kWh/m. The theoretical economic values of the digestate (13.8 $/m) and permeate (4.1 $/m) were assessed according to nutrient transformation and price of mineral fertilizer. The total CO emission equivalent in the AnMBR was 44.7 kg CO-eq/m, with a significant reduction of 54.1 kg CO-eq/m compared to the conventional process. The application of the AnMBR in the DPW treatment is a promising approach for the development of carbon neutrality and a circular economy.
乳制品加工废水（DPW）的管理必须在提供可再生能源和回收资源的同时解决水污染问题。研究了一种高通量厌氧膜生物反应器（AnMBR）来处理 DPW，并根据元素流、营养物回收、能量平衡和 CO 排放量减少对系统进行了评估。在 DPW 处理中，AnMBR 系统在产甲烷性能和生物能源回收效率方面都具有优势，净能量潜力高达 51.4-53.2 kWh/m。根据营养物质转化和矿物肥料价格，评估了消化物（13.8 美元/m）和渗透物（4.1 美元/m）的理论经济价值。AnMBR 中的总 CO 排放当量为 44.7 kg CO-eq/m，与传统工艺相比，CO 排放当量显著减少了 54.1 kg CO-eq/m。AnMBR 在 DPW 处理中的应用是实现碳中和和循环经济发展的有前途的方法。
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