Biochemically enhanced hybrid anaerobic reactor

Details Biochemically enhanced hybrid anaerobic reactor Biochemically enhanced hybrid anaerobic reactor

1992-04-23

1993-07-20

Upton, Christopher

Liquid purification or separation

Processes

Treatment by living organism

210607, 210610, 210615, 210631, 210150, 210180, 210194, 210218, 210917, C02F 328

Patent

active

052289958

ABSTRACT:
A biochemically enhanced hybrid anaerobic reactor (BEHAR) system has been developed for treatment of high strength industrial wastewaters. The process is designed and operated based on specific criteria developed around critical biochemical and microbiological principles of the facultative and anaerobic microorganisms involved in anaerobic treatment. Biological kinetic relationships developed by the inventor for substrate removal, methane gas production, and biogas quality control as a function of the mass substrate loading rate are used for designing and operating the BEHAR process. A specific formulation of biological growth micronutrients has been developed for enhancing the anaerobic treatment process. Ferric chloride, one of the chemicals used as a micronutrient, is also utilized for sulfide toxicity control, biogas cleaning without scrubbing, and odor control. Magnesium hydroxide is also used as a micronutrient while offering the added benefits of sulfide toxicity control, biogas cleaning without scrubbing, odor control, and addition of alkalinity and buffering capacity to the BEHAR system, along with sodium toxicity control. Various combinations of ferric or ferrous salts and magnesium hydroxide are used to provide maximum and optimized bulk liquid sulfide control and biogas H.sub.2 S control. Heavy metal toxicity control is also provided in problematic wastewaters by the addition of sulfates which are reduced to sulfides to precipitate heavy metals as insoluble metal sulfides. An understanding of these kinetic, microbiological and biochemical principles combined with a unique reactor design to enhance the practical application of these principles constitutes the BEHAR process.

REFERENCES:
patent: 3371033 (1968-02-01), Simmons et al.
patent: 4067801 (1978-01-01), Ishida et al.
patent: 4134830 (1979-01-01), Skogman et al.
patent: 4311593 (1982-01-01), Benjes et al.
patent: 4315823 (1982-02-01), Witt et al.
patent: 4322296 (1982-03-01), Fan et al.
patent: 4491522 (1985-01-01), Ishida et al.
patent: 4530762 (1985-07-01), Love
patent: 4561974 (1985-12-01), Bernard et al.
patent: 4582600 (1986-04-01), Atkinson et al.
patent: 4632758 (1986-12-01), Whittle
patent: 4676906 (1987-06-01), Crawford et al.
patent: 4735723 (1988-04-01), Mulder
patent: 4796433 (1988-05-01), Nobl et al.
patent: 4826600 (1989-05-01), Ely et al.
patent: 4846289 (1989-07-01), Jeris et al.
patent: 4919815 (1990-04-01), Copa et al.
patent: 4940546 (1990-07-01), Vogelpohl et al.
patent: 4948509 (1990-08-01), Stack
patent: 5006249 (1991-04-01), Green et al.

Affiliated with

Also associated with

Rating

Biochemically enhanced hybrid anaerobic reactor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biochemically enhanced hybrid anaerobic reactor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biochemically enhanced hybrid anaerobic reactor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1758193