CHAPTER 1  INTRODUCTION
  1.1  Unintended consequences of shale gas operations: Environmental risk
    1.1.1  Chemicals in Wastewater
    1.1.2  Wastewater Leakage
  1.2  Human Health Risk Assessment
    1.2.1  Planning -Planning and Scoping process
    1.2.2  Step 1 -Hazard Identification
    1.2.3  Step 2 -Dose-Response Assessment
    1.2.4  Step 3 -Exposure Assessment
    1.2.5  Step 4 -Risk Characterization
    1.2.6  Step 5 Sensitive Analysis
CHAPTER 2  MATHMATIC MODELS
  2.1  Human Health Risk Assessment Model
  2.2  Monte-Carlo Method
CHAPTER 3  RISK ASSESSMENT MODEL APPLICATION
  3.1  Introduction
  3.2  Method and materials
    3.2.1  Initial data
    3.2.2  Pollutant concentrations in environmental compartments
    3.2.3  Probabilistic risk assessment
  3.3  Results
    3.3.1  Air inhalation risks
    3.3.2  Surface soil exposure risks
  3.4  Discussion
  3.5  Conclusion
CHAPTER 4  FLOWBACK WATER TREATMENT
  4.1  Research progress of heterogeneous Fenton catalyst for organic wastewater treatment
    4.1.1  Research status of Fenton reaction
    4.1.2  Performance study of heterogeneous Fenton catalyst
    4.1.3  Conclusion
  4.2  Study on fracturing flowback fluid treatment technology for shale gas in Yangzhou
    4.2.1  Water quality characteristics of the flowback fluid in Yangzhou
    4.2.2  Experiment design
    4.2.3  Results and discussions
    4.2.4  Conclusions
  4.3  Study on treatment of acidified waste liquid by process of neutralization/oxidation/flocculation
    4.3.1  Experimental methods
    4.3.2  Results and discussion
    4.3.3  Conclusions
  4.4  Advances in the treatment of organic wastewater with heterogeneous supported Fenton catalyst
    4.4.1  Performance study of heterogeneous supported Fenton catalyst
    4.4.2  Summary and prospect
  4.5  Removal of scaling ions from catalytic oxidation and flocculation-treated fracking flowback fluids
    4.5.1  Materials and Methods
    4.5.2  Results and Discussion
    4.5.3  Conclusions
  4.6  Factors influencing the removal of boron from fracturing fluid flowback by chemical oxidative precipitation
    4.6.1  Materials and Methods
    4.6.2  Results and Discussion
    4.6.3  Conclusions
  4.7  Method for synergistic degradation treatment of polysaccharide-containing polymer wastewater by controllable ·OH radical
    4.7.1  Background
    4.7.2  Results
    4.7.3  Conclusion
  4.8  Integrated boron removal and flocculation process for treating fracturing wastewater
    4.8.1  Background
    4.8.2  Results
    4.8.3  Conclusion
  4.9  Method for preparing superfine calcium carbonate by treatment process of waste liquid in oilfield operations
    4.9.1  Background
    4.9.2  Results
    4.9.3  Conclusion
  4.10  Method for modified clay assisted microbial treatment of oil-gas field produced water with large amount of scale buildup
    4.10.1  Background
    4.10.2  Results
    4.10.3  Conclusion
APPENDIX
REFERENCES