Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan; Department of Chemical Engineering, Hanoi University of Science and Technology, No.1 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam; Environmental Engineering and Water Technology Department, UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands.
Rubber Research Institute of Vietnam, Km42, Road 13, Ben Cat, Binh Duong 827211, Viet Nam.
Bioresour Technol. 2017 Aug;237:204-212. doi: 10.1016/j.biortech.2017.02.058. Epub 2017 Mar 7.
A pilot-scale upflow anaerobic sludge blanket (UASB)-downflow hanging sponge system (DHS) combined with an anaerobic baffled reactor (ABR) and a settling tank (ST) was installed in a natural rubber processing factory in South Vietnam and its process performance was evaluated for 267days. The UASB reactor achieved a total removal efficiency of 55.6±16.6% for chemical oxygen demand (COD) and 77.8±10.3% for biochemical oxygen demand (BOD) with an organic loading rate of 1.7±0.6kg-COD·m·day. The final effluent of the proposed system had 140±64mg·L of total COD, 31±12mg·L of total BOD, and 58±24mg-N·L of total nitrogen. The system could significantly reduce 92% of greenhouse gas emissions and 80% of hydraulic retention times compared with current treatment systems.
在越南南部的一家天然橡胶加工厂安装了一个中试规模的上流式厌氧污泥床（UASB）-下流式悬挂式海绵系统（DHS），并结合了厌氧折流板反应器（ABR）和沉淀池（ST），对其进行了 267 天的工艺性能评估。UASB 反应器在有机负荷率为 1.7±0.6kg-COD·m·day 的条件下，对化学需氧量（COD）的总去除效率达到 55.6±16.6%，对生化需氧量（BOD）的总去除效率达到 77.8±10.3%。该系统的最终出水总 COD 为 140±64mg·L，总 BOD 为 31±12mg·L，总氮为 58±24mg-N·L。与目前的处理系统相比，该系统可显著减少 92%的温室气体排放和 80%的水力停留时间。
