Chapter 1 Introduction 99
Section 1 Purpose and task of environmental chemistry experiments 99
Section 2 Laboratory safety rules 100
Section 3 Handling of laboratory accidents 102
Chapter 2 The usage of common instruments 104
Section 1 Washing and drying methods of glass instruments 104
1 Washing of glass instruments 104
2 Drying of glass instruments 105
Section 2 Water for environmental chemistry experiments and its preparation 106
1 Distilled water 106
2 Deionized water 106
Section 3 Common instruments for environmental chemistry experiments 109
1 Balance 109
2 3200 Atomic absorption spectrophotometer 113
3 2100P Portable turbidimeter 118
4 FB2200 Acidometer 121
Chapter 3 Pretreatment technology of environmental samples 123
Section 1 Collection methods of gas samples 123
1 Collection of aerosol(smog)samples 123
2 Collection of indoor air pollutants samples 125
Section 2 Collection and preservation of water samples 126
1 Collection of water samples 126
2 Pretreatment and preservation of water samples 128
Section 3 Collection and preservation of soil samples 132
1 Collection of soil samples 132
2 Pretreatment and preservation of soil samples 133
Section 4 Collection and preservation of biological samples 134
1 Collection of biological samples 134
2 Pretreatment and preservation of biological samples 135
Chapter 4 Environmental chemistry experiments 137
Section 1 Atmospheric environmental chemistry experiments 137
Experiment 1 Pollution analysis of PAHs in urban atmospheric aerosol 137
Experiment 2 Pollution analysis of benzene in indoor air 141
Experiment 3 Concentration level of formaldehyde in indoor air 145
Experiment 4 Liquid phase oxidation simulation of SO2 in ambient air 150
Experiment 5 Determination of SO2 in air 152
Experiment 6 Determination of nitrogen oxides in air with N-(1-naphthyl) ethylenediamine dihydrochloride spectrophotometry 158
Experiment 7 Determination of ozone in ambient air using sodium indigo disulfonate spectrophotometry 164
Section 2 Water environmental chemistry experiments 168
Experiment 8 Determination of residual chlorine in drinking water (iodimetric titration) 168
Experiment 9 Determination of Cl- in water (precipitation titration) 171
Experiment 10 Fenton reagent catalyzed oxidation of dye wastewater 174
Experiment 11 Existing forms of copper in natural water 177
Experiment 12 Determination of biochemical oxygen demand (BOD5) in wastewater 180
Experiment 13 Determination of chromium in industrial wastewater (diphenylcarbazide spectrophotometry) 182
Experiment 14 Coagulation experiment 186
Experiment 15 Determination of total organic carbon in water by nondispersive infrared absorption method 190
Section 3 Soil environmental chemistry experiments 195
Experiment 16 Determination of lead in soil by graphite furnace atomic absorption spectrometry 195
Experiment 17 Chemical remediation of soil contaminated by heavy metals (EDTA leaching of copper from soil) 197
Experiment 18 Determination of soil organic matter 203
Experiment 19 Determination of soil cation exchange capacity 206
Experiment 20 Determination of copper，zinc，lead，and cadmium in industrial solid waste by flame atomic absorption spectrometry 210
Section 4 Ecological effects experiments of chemical substances 214
Experiment 21 Adsorption of phenol by sediment 214
Experiment 22 Evaporation rate of organic matter in water 218
Experiment 23 Simple identification of chromium in sediment 220
Experiment 24 Study on the existence forms and migration rules of heavy metals in sediment 224
Experiment 25 Determination of total arsenic content in food by hydride atomic fluorescence spectrometry 229
References 233
Preface
Environmental chemistry is a science that studies the existence，chemical properties，behaviors，and effects of harmful chemicals in environmental media， as well as the chemical principles and methods for their control. The discipline of environmental chemistry in China has become an important branch of chemistry and a mainstream and core component of env-ironmental science.
The team of authors of this book is dedicated to teaching environmental chemistry courses and has rich experience in environmental science research and experimental practice.In 2010，it was approved by the Ministry of Education for the construction of bilingual teaching demonstration courses（Jiao Gao Han〔2010〕No.11）and the textbook construction project of University of Science and Technology Beijing.In 2014，the bilingual textbook Exercises in Chemistry of the Environment was published.In 2016，a bilingual textbook titled Chemistry of the Environment was published.On the basis of summarizing the research achievements of environmental chemistry and combining with the major education and teaching reform direction of the 14th Five Year Plan of University of Science and Technology Beijing，we have compiled this text book.It was intended to improve the understanding level and experimental operation skills of teachers and students in related fields，cultivate students’ patriotism and national craftsmanship spirit， and contribute to achieving China’s goals of “carbon peak” and “carbon neutrality”.
The bilingual textbook of Experiments in Environmental Chemistry is mainly aimed at undergraduate students majoring in environment，chemistry，biology， materials， metallurgy， energy， etc.It is used in conjunction with the bilingual textbooks of Chemistry of the Environment and Exercises in Chemistry of the Environment.
This book was compiled with Gong Aijun as the chief editor，and Qiu Lina and Zhang Weiwei as the associate editor. The book consists of four chapters， including 25 experiments， ranging from basic experiments to comprehensive and research-oriented experiments.The content covers atmospheric environmental chemistry，water environmental chemistry，soil environmental chemistry， and ecological effects experiments of chemical substances.The first chapter of the introduction was written by Zhang Weiwei，Gao Ge，and Chen Yue；Chapter 2 the usage of common instruments was written by Bai Yuzhen，Wang Yiwen，and Li Pengyun；Chapter 3 pretreatment technology of environmental samples was written by Qiu Lina， Zhao Weiyu， and Wang Xianghai； The fourth chapter of environmental chemistry experiments was written by Gong Aijun，Liu Yang，Han Mengyang，Cao Long，Dong Yi，and Xu Xin.
Due to limitations in knowledge，writing，and English proficiency，there are inevitably flaws in the book.We hope to receive criticism and corrections from readers and colleagues.
Editor
2024.10
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