Community Environmental Services, Inc.

Development & Testing of an Innovative/Alternative and Low Cost Method for Septage Dewatering, State of TexasWork on this two-year state-funded research project included process development, design and construction of system components, project management and contract administration for a low cost natural method of filtering domestic septage.

Recognizing the need for low-cost septage treatment methods, Community Environmental Services, Inc. developed and carried out a two-year research project beginning in 1993 to evaluate the use of waste wood chips for pre-treating raw septage, and the beneficial reuse of composted filtered septage and wood chips. The project demonstrated a method for dewatering and filtering septage that utilizes waste wood chips. The spent batches of wood chips and biosolids were composted, and the filtrate from the treatment process was found to be of a quality suitable for certain types of reuse with very little additional treatment. Several U.S. patents reference this research work.