自制无机复合絮凝剂污水除磷效能研究
发布时间：2023-08-18 20:27
城市生活污水和工业废水均含有高浓度的含磷化合物，磷是导致水体富营养化和水质恶化的重要原因，因此污水除磷是十分必要的。 出水总磷的排放标准随地域收纳水体的不同而有差异。按照中国国标GB18918–2002B排放标准，出水总磷排放浓度必须低于1mg/L。近年来水处理技术的研究日益深入，目前，快速絮凝技术由于其低投入、低成本的优势应用也日益广泛。 因此本研究将自制的絮凝剂应用于城市生活污水(取自汤逊湖污水处理厂)的处理，实验室用赤泥、铝土矿及粉煤灰为原料制备四种不同絮凝剂，分别为改性铝土矿絮凝剂(1#)、改性赤泥絮凝剂(2#)、改性铝土矿与赤泥絮凝剂(3#)及改性铝土矿与粉煤灰絮凝剂(4#)。 分析四组絮凝剂的各项物化性质并与《工业聚合氯化铝国家标准》GB/T22627-2008对比可知，1#、3#、4#絮凝剂的pH达到国家标准规定的3.5-5.0的范围，3#絮凝剂氧化铝含量达到标准中≥29%的规定，4#(26.83%)接近国家标准。总体上，自制的四种絮凝剂物化性质均可达到相关国家标准。 对自制的絮凝剂进行模拟废水实验，得出1#絮凝剂的最适pH在68之间，最佳投加量为0...
【文章页数】：92 页
【学位级别】：硕士
【文章目录】：
DEDICATION
ABSTRACT
摘要
CHAPTER ONE: INTRODUCTION
1.1 OVERVIEW
1.2 BACKGROUND
1.3 PROBLEM STATEMENT
1.4 PURPOSE AND SIGNIFICANCE OF STUDY
1.5 ANALYSIS AND CURRENT RESEARCH
CHAPTER TWO: LITERATURE REVIEW
2.1 SOURCES OF PHOSPHORUS AND THEIR STRUCTURES
2.2 SOURCE CONTROL OF PHOSPHORUS
2.3 PHOSPHORUS COMPOUNDS IN AQUEOUS SOLUTION
2.3.1 PHOSPHORUS COMPOUNDS IN WATER ENVIRONMET
2.3.2 HYDROLYSIS OF PHOSPHORUS COMPOUNDS
2.4 PHOSPHORUS REMOVAL PROCESS
2.5 PHOSPHORUS REMOVAL BY CHEMICAL PRECIPITATION
2.6 CHEMISTRY OF CHEMICAL PRECIPITATION
2.7 PROCESS CONFIGURATION
2.8 COAGULATION AND FLOCCULATION
CHAPTER THREE: METHODOLOGY
3.1 MATERIALS
3.1.1 WASTE WATER SAMPLES
3.1.2 EQUIPMENT AND INSTRUMENTS
3.1.3 MAIN ANALYSIS AND CHARACTERISATION EQUIPMENT
3.2 METHODS
3.2.1 INDEX TEST METHOD OF WASTE WATER INDICATORS
3.2.2 PREPARATION OF INORGANIC COMPOSITE COAGULANTS
3.2.3 PROPERTIES OF INORGANIC COMPOSITE COAGULANT
CHAPTER FOUR: EXPERIMENTAL RESULTS AND ANALYSIS
4.1 DETERMINATION OF OPTIMUM PH CONDITIONS
4.2 DETERMINATION OF OPTIMUM COAGULANT DOSAGE
4.3 DETERMINATION OF OPTIMUM HYDRAULIC CONDITIONS
4.4 SELECTION OF COAGULANTS
4.5 COAGULANTS USED IN SEWAGE WASTE WATER TREATMENT
4.6 Chapter Summary
CHAPTER FIVE: COAGULANT MECHANISM
5.1 X RAY FLUORESCENCE SPECTROSCOPY
5.2 X RAY DIFFRACTION ANALYSIS
5.3 INFRARED SPECTROSCOPY
5.4 SCANNING ELECTRON MICROSCOPY ANALYSIS
5.5 MECHANISM ANALYSIS OF THE COAGULANT
5.5.1 CHARGE NEUTRALISATION
5.5.2 ADSORPTION BRIDGING MECHANISM
5.5.3 ELECTROSTATIC PATCH MECHANISM
5.5.4 VOLUME SWEEPING NETTING EFFECT
CHAPTER SIX: CONCLUSION AND RECOMMENDATION
6.1 CONCLUSION
6.2 RECOMMENDATION
REFERENCES
ACKNOWLEDGEMENTS
本文编号：3842892
【文章页数】：92 页
【学位级别】：硕士
【文章目录】：
DEDICATION
ABSTRACT
摘要
CHAPTER ONE: INTRODUCTION
1.1 OVERVIEW
1.2 BACKGROUND
1.3 PROBLEM STATEMENT
1.4 PURPOSE AND SIGNIFICANCE OF STUDY
1.5 ANALYSIS AND CURRENT RESEARCH
CHAPTER TWO: LITERATURE REVIEW
2.1 SOURCES OF PHOSPHORUS AND THEIR STRUCTURES
2.2 SOURCE CONTROL OF PHOSPHORUS
2.3 PHOSPHORUS COMPOUNDS IN AQUEOUS SOLUTION
2.3.1 PHOSPHORUS COMPOUNDS IN WATER ENVIRONMET
2.3.2 HYDROLYSIS OF PHOSPHORUS COMPOUNDS
2.4 PHOSPHORUS REMOVAL PROCESS
2.5 PHOSPHORUS REMOVAL BY CHEMICAL PRECIPITATION
2.6 CHEMISTRY OF CHEMICAL PRECIPITATION
2.7 PROCESS CONFIGURATION
2.8 COAGULATION AND FLOCCULATION
CHAPTER THREE: METHODOLOGY
3.1 MATERIALS
3.1.1 WASTE WATER SAMPLES
3.1.2 EQUIPMENT AND INSTRUMENTS
3.1.3 MAIN ANALYSIS AND CHARACTERISATION EQUIPMENT
3.2 METHODS
3.2.1 INDEX TEST METHOD OF WASTE WATER INDICATORS
3.2.2 PREPARATION OF INORGANIC COMPOSITE COAGULANTS
3.2.3 PROPERTIES OF INORGANIC COMPOSITE COAGULANT
CHAPTER FOUR: EXPERIMENTAL RESULTS AND ANALYSIS
4.1 DETERMINATION OF OPTIMUM PH CONDITIONS
4.2 DETERMINATION OF OPTIMUM COAGULANT DOSAGE
4.3 DETERMINATION OF OPTIMUM HYDRAULIC CONDITIONS
4.4 SELECTION OF COAGULANTS
4.5 COAGULANTS USED IN SEWAGE WASTE WATER TREATMENT
4.6 Chapter Summary
CHAPTER FIVE: COAGULANT MECHANISM
5.1 X RAY FLUORESCENCE SPECTROSCOPY
5.2 X RAY DIFFRACTION ANALYSIS
5.3 INFRARED SPECTROSCOPY
5.4 SCANNING ELECTRON MICROSCOPY ANALYSIS
5.5 MECHANISM ANALYSIS OF THE COAGULANT
5.5.1 CHARGE NEUTRALISATION
5.5.2 ADSORPTION BRIDGING MECHANISM
5.5.3 ELECTROSTATIC PATCH MECHANISM
5.5.4 VOLUME SWEEPING NETTING EFFECT
CHAPTER SIX: CONCLUSION AND RECOMMENDATION
6.1 CONCLUSION
6.2 RECOMMENDATION
REFERENCES
ACKNOWLEDGEMENTS
本文编号：3842892
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