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MATHEMATICS MANUAL FOR WATER AND WASTEWATER TREATMENT PLANT OPERATORS - PART 4

Nước / nước thải Vòi Lab Lưu lượng ước tính dịch vụ dòng Flushing Thời gian lấy mẫu tính Composite (cân đối Factor) • Thủ tục lấy mẫu hỗn hợp và tính toán nhu cầu oxy sinh hóa (BOD) tính toán • Hội đồng quản trị 7 ngày Di chuyển nốt ruồi trung bình và nồng độ mol lắng • Bình thường nốt ruồi (hoạt Chất rắn sinh học chất rắn) chất rắn Settleable Chất rắn sinh học Tổng chất rắn, chất rắn cố định, và Xử lý nước thải chất rắn dễ bay hơi Chất rắn lơ lửng và. | Part IV Laboratory Calculations 2004 by CRC Press LLC 33 Water Wastewater Laboratory Calculations TOPICS Water Wastewater Lab Faucet Flow Estimation Service Line Flushing Time Composite Sampling Calculation Proportioning Factor Composite Sampling Procedure and Calculation Biochemical Oxygen Demand BOD Calculations BOD 7-Day Moving Average Moles and Molarity Moles Normality Settleability Activated Biosolids Solids Settleable Solids Biosolids Total Solids Fixed Solids and Volatile Solids Wastewater Suspended Solids and Volatile Suspended Solids Biosolids Volume Index BVI and Biosolids Density Index BDI WATER WASTEWATER LAB Ideally waterworks and wastewater treatment plants are sized to meet both current and future needs. No matter the size of the treatment plant some space or area within the plant is designated as the lab area ranging from being closet sized to fully equipped and staffed environmental laboratories . Water wastewater laboratories usually perform a number of different tests. Lab test results provide operators with the information necessary to operate the treatment facility at optimal levels. Laboratory testing usually involves service line flushing time solution concentration pH chemical oxygen demand COD total phosphorus fecal coliform count chlorine residual and biochemical oxygen demand BOD seeded tests to name a few. The standard reference for performing wastewater testing is contained in Standard Methods for the Examination of Water and Wastewater APHA AwWa WEF 1995. In this chapter we focus on standard water wastewater lab tests that involve various calculations. Specifically we focus on calculations used to determine a proportioning factor for composite sampling flow from a faucet estimation service line flushing time solution concentration BOD molarity and moles normality settleability settleable solids biosolids total fixed and volatile solids suspended solids and volatile suspended solids and biosolids volume and biosolids density indexes. .