Section 4-1: City Waste Water Bioremediation 

Section 4-2: Biotechnology for Odor, Construction Chemicals and Air Pollution Control and Quality Control

Section 4-3: Bioremdiation for City Sludge Ponds, Soil of Toxins and Composting of Garden Plants

Section 4-4: Biophysico-chemical Remediation Processes of Heavy Metals and Metalloids in Soil   

Section 4-5: Bioremediation of Organic Contaminated Soil and Groundwater  

Section 4-6: Microbial Degradation of Pesticides

Section 4-7: Biodegradable of Synthetic Polymers 

Section 4-8: Air Pollution Monitoring, Sediments and Modeling  

Section 4-9: Indoors with Emissions Management 

Section 4-10: Wetlands and Bioremediation