+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Treatment of municipal solid waste leachate using a submerged anaerobic membrane bioreactor at mesophilic and psychrophilic temperatures: analysis of recalcitrants in the permeate using GC-MS

, : Treatment of municipal solid waste leachate using a submerged anaerobic membrane bioreactor at mesophilic and psychrophilic temperatures: analysis of recalcitrants in the permeate using GC-MS. Water Research 44(3): 671-680

This study investigated the performance of two submerged anaerobic membrane bioreactors (SAMBRs) operating at a mean solids residence time (SRT) of 30 (SAMBR30) and 300 days (SAMBR300) at mesophilic and psychrophilic temperatures. At 35 degrees C results showed that SAMBR30 and 300 could achieve 95% soluble chemical oxygen demand (SCOD) removal at 1.5 and 1.1 days HRT, respectively, whereas at 20 degrees C only SAMBR300 could maintain the same performance. Low temperatures were associated with higher bulk SCOD concentrations, which contributed to reducing the flux, but this was partly reversible once the SCOD was degraded. The utilization rate of compounds was affected differently by the drop in temperature with the concentration of some recalcitrants increasing, while for others such as bisphenol A it decreased when the temperature was decreased. Among the recalcitrants detected in SAMBR30 at 20 degrees C there were not only long chain fatty acids such as undecanoic acid and dodecanoic acid, but also long chain alkanes such as tetracosane and heneicosane that could not be hydrolyzed at 20 degrees C. In SAMBR300 these alkanes and acids only appeared at 10 degrees C, whereas at 20 degrees C complex compounds such as phenol, 2-chloro-4-(1,1-dimethylethyl), 6-tert-butyl-2,4-dimethylphenol, benzophenone, and n-butyl benzenesulfonamide were found.


PMID: 19822341

DOI: 10.1016/j.watres.2009.09.043

Other references

Tams, S.; Thatcher, J.; Grover, V.; Pak, R., 2016: Selective attention as a protagonist in contemporary workplace stress: implications for the interruption age. The ubiquity of instant messages and email notifications in contemporary work environments has opened a Pandora's Box. This box is filled with countless interruptions coming from laptops, smartphones, and other devices, all of which constantl...

Moore, C.Mark., 2017: Diagnosing oceanic nutrient deficiency. The supply of a range of nutrient elements to surface waters is an important driver of oceanic production and the subsequent linked cycling of the nutrients and carbon. Relative deficiencies of different nutrients with respect to biological requir...

Liessi, G.; Salano, F.; Belloli, G.P., 1981: Value of ultrasound study in neonatal adrenal hemorrhage. La Pediatria Medica E Chirurgica 3(5): 387-390

Anonymous, 1960: Academy Honors Waterman; New Officers and Members Elected. Science 131(3410): 1360-1360

Matos Luiz Carlos Borba Brasil; Lima Laura Marcia Ferreira de Souza, 1984: Petrography of coals from sounding O2TG88 RS, Chico Loma coal measures, Rio Grande do Sul. Resumos Congresso Brasileiro de Geologia: ages 70-71. 1984.

Croan, S., 1993: Controlling existing sapstain fungal growth of Ceratocystis coerulescens by reacting with hydroxy radicals or metabolites obtained from Bjerkandera adusta and Talaromyces flavus. Phytopathology 83(12): 1407

Dodgson, K.S.; Spencer, B., 1953: Glucosulphatase activity in marine molluscs. Biochemical Journal 53(1): Iv-Iv

McNaughton, C.D.; Parnell, J.; Barrett, T.W., 2013: Details in operational definitions of length of visit and boarding variables in the National Hospital Ambulatory Medical Care Survey. Annals of Emergency Medicine 62(5): 548-549

Rapp, F., 1962: Localization of antinuclear factors from lupus erythematosus sera in tissue culture. HeLa cells were used to detect antibodies in human serum against nuclear com -ponents by the indirect immunofluorescent technic. Results with 169 sera correlated well with those obtained by complement-fixation against calf thymus nuclei and with t...

Pindel, Zbigniew, 1964: The comparison of uptake of mineral compounds by single and double garden stock. The experiments carried out on garden stock (Matthiola incana R. Br. cv. annua) aimed at determining the differences in the N, P2O5, K2O and CaO uptake. The uptake of mineral compounds by the double garden stock was more intense and reached up to...