Publication Date:
2017-06-14
Description:
A solar-heated anaerobic reactor system was applied to decompose livestock wastewater, in which cattle manure and chopped straw were mixed (COD Cr 15,000∼25,000 mg·l -1 ), the commercial microorganisms were added to ambient acidification (about 32°C) and the acclimated sludge was inoculated. Then, the experiments were carried out on wastewater anaerobic degradation and biogas production at 40∼42°C, as fed every 10 days till stable running. The results showed that NH 3 -N and PO 4 3- of the biogas slurry were 441 mg·l - 1 and 65.0 mg·l -1 on the 35 th day, respectively. The concentration of K was up to 350 mg·l -1 in the biogas slurry, rather higher than that of Mg and Fe, which indicated that the available K could contribute more in the agricultural irrigation. Total amino acids were up to 23.7 mg·l -1 after anaerobic digestion, in which Lys, Thr, Ala and Arg were prominent in the b...
Print ISSN:
1755-1307
Electronic ISSN:
1755-1315
Topics:
Geography
,
Geosciences
,
Physics
Permalink
