Kinh doanh - Marketing
Kinh tế quản lý
Biểu mẫu - Văn bản
Tài chính - Ngân hàng
Công nghệ thông tin
Tiếng anh ngoại ngữ
Kĩ thuật công nghệ
Khoa học tự nhiên
Khoa học xã hội
Văn hóa nghệ thuật
Sức khỏe - Y tế
Văn bản luật
Nông Lâm Ngư
Kỹ năng mềm
Luận văn - Báo cáo
Giải trí - Thư giãn
Tài liệu phổ thông
Văn mẫu
Giới thiệu
Đăng ký
Đăng nhập
Tìm
Danh mục
Kinh doanh - Marketing
Kinh tế quản lý
Biểu mẫu - Văn bản
Tài chính - Ngân hàng
Công nghệ thông tin
Tiếng anh ngoại ngữ
Kĩ thuật công nghệ
Khoa học tự nhiên
Khoa học xã hội
Văn hóa nghệ thuật
Y tế sức khỏe
Văn bản luật
Nông lâm ngư
Kĩ năng mềm
Luận văn - Báo cáo
Giải trí - Thư giãn
Tài liệu phổ thông
Văn mẫu
Thông tin
Điều khoản sử dụng
Quy định bảo mật
Quy chế hoạt động
Chính sách bản quyền
Giới thiệu
Đăng ký
Đăng nhập
0
Trang chủ
Khoa Học Tự Nhiên
Môi trường
Low strength effluent treatment with cyclic technologies in Vietnam
Đang chuẩn bị liên kết để tải về tài liệu:
Low strength effluent treatment with cyclic technologies in Vietnam
Dạ Nguyệt
70
8
pdf
Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
Wastewater with low pollution concentrations are common in cities of the developing countries also in Vietnam because sewer network for wastewater is not yet construction that rely on combined sewer network. The results of the decomposition of organic matter partly in combined sewer network significantly reduced levels of BOD, while reducing nitrogen only a small part. The imbalance of BOD, nitrogen ratio is a challenge for treatment of wastewater - especially to ensure the nitrogen meets requirements. | LOW STRENGTH EFFLUENT TREATMENT WITH CYCLIC TECHNOLOGIES IN VIETNAM Eng Nguyen Phuong Quy1 Le Thanh2 Vu Duc Toan3 Abstract Wastewater with low pollution concentrations are common in cities of the developing countries also in Vietnam because sewer network for wastewater is not yet construction that rely on combined sewer network. The results of the decomposition of organic matter partly in combined sewer network significantly reduced levels of BOD while reducing nitrogen only a small part. The imbalance of BOD nitrogen ratio is a challenge for treatment of wastewater - especially to ensure the nitrogen meets requirements. Results of the analysis of influent and effluent concentrations in Yen So Hanoi Vinh Nghe An wastewater treatment plants where applied cyclic activated sludge technologies base on sequencing batch reactors with good control of operation to show that the effluent quality is stability and meet Vietnamese standard. Keywords Nitrogen removal nitrification denitrification cyclic activated sludge technology modified SBR SBR. BACKGROUND In 1995 Vietnam had issued the Environmental Protection Law but until 2002 the criteria for municipal wastewater treatment TCVN 7222 2002 was issued with requirements for some parameters. The regulations for wastewater treatment plant that contained secondary treatment stage are BOD 30mg l TSS 30mg l Total N 30mg l Total P 12mg l. NH4-N had not been regulated. In 2008 Ministry of Natural Resources and Environment issued QCVN 14 2008 BTNMT 11 regulations for municipal wastewater which was applied in parallel with TCVN 7222 2002. QCVN 14 2008 BTNMT contains two limits-specified in column A in case the effluent discharge to the basin that used for domestic water supply and column B others as given in Table 1. Generally in Vietnam s the industrial factories often in the city but the industrial wastewater is 1 SFC Vietnam JV Investment Development for Environment Corp. Phu Dien bld. 2 Phu Dien Construction Investment and .
TÀI LIỆU LIÊN QUAN
Research on manufacturing dry mixed cement mortar with high compressive strength, high flexural strength, low shrinkage and high watertightness for restoration of damaged hydraulic structures in Vietnam
Metallurgical and mechanical properties of laser welded high strength low alloy steel
Effect of preheating of low shrinking resin composite on intrapulpal temperature and microtensile bond strength to dentin
Standard specification for carbon and high-strength low-alloy structural steel shapes, plates and bars and quenched and tempered alloy structural steel plates for bridges
Mechanical and fatigue properties of long carbon fiber reinforced plastics at low temperature
Strength model of soil-based clsm using stainless steel reducing slag blended-cement
Experimental study on mechanical properties of different lightweight aggregate concretes
Analytical estimation of tooth strength, restored by direct or indirect restorations
Deletion of the low-molecular-weight glutenin subunit allele Glu-A3a of wheat (Triticum aestivum L.) significantly reduces dough strength and breadmaking quality
Better muscle strength can decrease the risk of arthralgia and back &joint stiffness in Kurdish men; a cross-sectional study using data from RaNCD cohort study
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.