咖啡初加工废水特征及生化处理工艺设计与调试  

Characteristics of coffee primary processing wastewater and biochemical treatment process design and debugging

作　　者：石秀顶 杨黎 陈桂杰 马红艳 朱煊 周文怡 蒋明[4] 李天国[4] SHI Xiuding;YANG Li;CHEN Guijie;MA Hongyan;ZHU Xuan;ZHOU Wenyi;JIANG Ming;LI Tianguo(Faculty of Architectural Engineering,Yunnan Agricultural University,Kunming 650201,China;Yunnan Province Design Institute Group Co.,Ltd.,Kunming 650201,China;Yunnan Zhongfa Environmental Protection and Energy Saving Engineering Co.,Ltd.,Kunming 650201,China;College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]云南农业大学建筑工程学院,昆明650201 [2]云南省设计院集团有限公司,昆明650201 [3]云南中发环保节能工程有限公司,昆明650201 [4]云南农业大学资源与环境学院,昆明650201

出　　处：《给水排水》2022年第6期76-83,共8页Water & Wastewater Engineering

基　　金：国家自然科学基金(22066027,51768074);云南省自然科学基金(2018FD020);云南农业大学科研启动基金(A2002419)。

摘　　要：立足于云南咖啡种植及初加工产业,分析了滇区咖啡初加工废水的产排污情况及水质特征,对咖啡废水净化处理及工艺选择进行了论述。结果表明,咖啡初加工废水总体为酸性高浓度有机污染废水,COD、BOD;和氨氮浓度较高、色度高且水质水量变化大。分析其水质特征后,应采用预处理-厌氧消化-好氧氧化-三级处理的净化工艺路线。同时结合工程实例,探讨了采用气浮-厌氧折流板反应器(Anaerobic baffed reactor,ABR)-二段生物接触氧化-高效混凝沉淀复合工艺处理咖啡废水的设计、调试运行效果及工程经验。工程实际运行结果表明,该复合工艺可实现咖啡废水的有效处理,出水水质达到《污水综合排放标准》(GB 8978-1996)一级标准,总体COD去除率达97%。Based on the coffee planting and primary processing industry in Yunnan province,this paper analyzes the production and discharge situation and water quality characteristics of coffee primary processing wastewater in Yunnan province,and discusses the purification treatment and process selection of coffee wastewater.The results show that the coffee primary processing wastewater is acidic and highly organic polluted wastewater,with high concentration of COD,BOD;and ammonia nitrogen,high chroma and water quality and quantity change greatly.After analyzing the characteristics of its water quality,the purification process of pretreatment-anaerobic digestion-aerobic oxidation-three stage treatment should be adopted.At the same time,combined with an engineering example,the design,commissioning effect and engineering experience of the combined process of air flotation,Anaerobic baffle reactor(ABR),two-stage biological contact oxidation and high efficiency coagulation and sedimentation for the treatment of coffee wastewater are discussed.The practical operation results show that the composite process can effectively treat coffee wastewater,the effluent can reaches the first class of Integrated wastewater discharge standard(GB 8978-1996),and the overall COD removal rate reaches 97%,which meets the requirements of direct discharge.

关 键 词：咖啡初加工废水 污染特征 生化处理 工艺设计 

分 类 号：X703.1[环境科学与工程—环境工程] TU992[建筑科学—市政工程]