| 摘要 |
<p>PCT No. PCT/DK96/00024 Sec. 371 Date Jul. 14, 1997 Sec. 102(e) Date Jul. 14, 1997 PCT Filed Jan. 15, 1996 PCT Pub. No. WO96/21625 PCT Pub. Date Jul. 18, 1996A method of treating a biomass comprising liquid manure from animal husbandry containing heavy metals, the method comprising the steps of subjecting the biomass to an anaerobic microbial degradation to form a biogas containing i.e. hydrogen sulphide gas, conveying at least a part of the biogas through at least a part of the microbially degraded biomass to precipitate the heavy metals as metal sulphides and separating the resulting mixture in a precipitate and a supernatant.</p> |
