Microbial degradation systems

Advantages The major advantages of the thermoplastic-based disposal systems are by dispiosin of the waste in a dry condition, the overall volume of the waste is greatly reduced most thermoplastic matrix materials are resistant to attack by aqueous solutions microbial degradation is minimal most matrices adhere well to incorporated materials, therefore, the final product has good strength and materials embedded in a thermoplastic matrix can be reclaimed if needed. 

Hwang H-M, RE Hodson, DL Lewis (1989) Microbial degradation kinetics of toxic organic chemicals over a wide range of concentrations in natural aquatic systems. Environ Toxicol Chem 8 65-74. 

Mihelcic JR, RG Luthy (1988) Microbial degradation of acenaphthene and naphthalene under denitrification conditions in soil-water systems. Appl Environ Microbiol 54 1188-1198. 

Microbial degradation in the root system of higher plants can be significant. 

Figure 2 Microbial degradation of citrate in aerated root washings of P-deficient white lupin 5.5 h after removal of the root systems from the trap solution.

RA Gross. Bacterial polyesters Structural variability in microbial synthesis. In SW Shalaby, ed. Biomedical Polymers Designed-to-Degrade Systems. Cincinnati, OH Hanser/Gardner, 1994, pp 173-188. 

Raef SF, Characklis WG, Kessick MA, et al. 1977a. Fate of cyanide and related compounds in aerobic microbial systems—II. Microbial degradation. Water Res 11 485-492. 

Shivaraman N, Kumaran P, Pandey RA, et al. 1985. Microbial degradation of thiocyanate, phenol and cyanide in a completely mixed aeration system. Environ Pollut, Ser A 39 141-150. 

Paris, D.F. and Lewis, D.L. Chemical and microbial degradation of ten selected pesticides in aquatic systems. Residue Rev., 45 95-124, 1973. 

Constructed wetlands (CWs) can promote removal of PhCs through a number of different mechanisms, including photolysis, plant uptake, microbial degradation and sorption to the soil. The main benefits of horizontal and vertical subsurface flow systems are the existence of aerobic, anaerobic and anoxic redox conditions in proximity to plant rhizomes this provides an ideal environment for reducing... 

During the past year, several new studies have been published on -D-glucosidase IME systems that attempt to fulfill these process-relevant criteria. Immobilization of -D-glucosidase by attachment to polyurethane foam (40) has shown some promise as an economical IME system due to the support s resistance to enzymatic and microbial degradation, advantageous physical properties, and improved kinetics. However, the potential for fouling by particulate matter exhibited by foams renders these supports... 

Finstein, M.S., G.C. Miller and P.F. Storm. 1986. Waste Treatment Composting as a Controlled System. Jn W. Schonborn (ed.) Biotechnology Microbial Degradation. Vol. 8 563. Weinheim, West Germany VCH. 

The improvement of the correlation of sensorBOD and BODj can also be achieved by incubating the biosensor for some hours in this wastewater sample, which has to be measured [53]. This allows the induction of all of the microorganisms required metabolic degradation systems [65]. As shown in Table 5, preincubated microbial sensors and the conventional BODj method revealed similar results. 

---