ABSTRACT
Experimental investigations and studies on microbial and chemical sewer processes are needed for two major reasons. First of all, basic studies on the nature of these processes are crucial for formulation of, for example, process rates and stoichiometric characteristics. The preceding chapters are rich in examples in this respect. Second, site-specific investigations in sewer networks are required to provide information on central parameters for sewer process models, for example, the WATS (Wastewater Aerobic/anaerobic Transformations in Sewers) model (cf. Chapter 9). This chapter focuses on two main subjects:
1. Methodologies of good practice in the study of chemical and microbial processes in wastewater collection systems. The information on such processes is provided by investigations, measurements, and analyses performed at bench scale, pilot scale, and field scale.
