Energy Recovery from Pretreatment of Industrial Wastes in the Anaerobic Fluidized Bed Process,
Abstract
The conclusions derived from the results presented in this paper include the following: (1) High strength industrial wastewaters, such as whey permeate, can be effectively treated by the anaerobic fluidized bed process and the energy generated, recovered. COD and BOD5 removals of over 80% can be obtained at volumetric loading rates over 24 kg COD/cu m 3 -day (1.5 lb COD/sq ft 3 -day). The observed methane production will be approximately 0.3 cu m 3/kg COD at STP. (2) Parallel operation of two Anitron System reactors at two different levels of feed concentration revealed that there appears to exist a maximum system hydraulic retention time beyond which microbial solids begin to proliferate in the liquid phase of the system. In the treatment of whey permeate at a volumetric loading rate of 16 kg COD/cu m 3 -day, the maximum system HRT corresponds to a maximum system HRT corresponds to a maximum feed COD concentration of approximately 15,000 mg/1. (3) Results to date indicate the superior performance of the two-phase operation over the single phase system at a volumetric loading of 10 kg COD/m3 -day. Studies are under way to evaluate the two-phase performance at higher loading rates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1982
- Accession Number
- ADP000794
Entities
People
- Alan Li
- Joseph J. Corrado
- Paul M. Sutton