Master's thesis of Engineering: Effect of sodium dodecyl benzene sulphonate (SDBS) on nitrogen removal in activated sludge processes using sequencing batch reactors (SBRs) and a pilot plant activated sludge of modified Ludzack-Ettinger (MLE) configuration

Số trang: 125 Loại file: pdf Dung lượng: 9.21 MB Lượt xem: 7 Lượt tải: 0

Thu Hiền

Hỗ trợ phí lưu trữ khi tải xuống: 125,000 VND

Xem trước 10 trang đầu tiên của tài liệu này:

Thông tin tài liệu:

Municipal wastewater treatment plants generally utilise biological activated sludge processes to remove organic compounds and nitrogen. The biological nitrogen removal (BNR) occurs in two steps, nitrification (ammonium removal) and denitrification (nitrates removal). This study focused on a medium-sized wastewater treatment plant (WTP) which experienced poor nitrification for years, mainly when the weather temperature drops. Further investigations showed that the wastewater influent had high concentrations of surfactants during the same period, indicating a relationship between the WTP performance and presence of surfactants in the influent.
Nội dung trích xuất từ tài liệu:
Masters thesis of Engineering: Effect of sodium dodecyl benzene sulphonate (SDBS) on nitrogen removal in activated sludge processes using sequencing batch reactors (SBRs) and a pilot plant activated sludge of modified Ludzack-Ettinger (MLE) configuration