5Odlare M,Arthurson V,Pell M,et al.Land application of organic waste-effects on the soil ecosystem[J].Applied Energy,2011,88(6):2210-2218.
6Weiland P.Biogas production:current state and perspectives[J].Applied Microbiology and Biotechnology,2010,85(4):849-860.
7Kalloum S,Bouabdessalem H,Touzi A,et al.Biogas production from the sludge of the municipal wastewater treatment plant of Adrar city(southwest of Algeria)[J].Biomass and Bioenergy,2011,35(7):2554-2560.
8Fritz D,Ortmeier H,Habegger R.Aquatic vegetables to be cultivated in ponds and marshes[C].II International Symposium on Specialty and Exotic Vegetable Crops,1992:179-186.
9Dahiya A,Vasudevan P.Biogas plant slurry as an alternative to chemical fertilizers[J].Biomass,1986,9(1):67-74.
10Zheng Y,Li Z,Feng S,et al.Biomass energy utilization in rural areas may contribute to alleviating energy crisis and global warming:A case study in a typical agro-village of Shandong,China[J].Renewable and Sustainable Energy Reviews,2010,14(9):3132-3139.
