PROCESS FOR PREPARING A FERTILISER FROM ORGANIC WASTE MATERIAL BY ADDING NITROGEN DIOXIDE OR A PRECURSOR

摘要

PCT No. PCT/IB96/00346 Sec. 371 Date Dec. 31, 1997 Sec. 102(e) Date Dec. 31, 1997 PCT Filed Apr. 18, 1996 PCT Pub. No. WO96/33961 PCT Pub. Date Oct. 31, 1996A process for producing a fertilizer from an organic waste material is described which comprises treating a waste, having a water content of no more than 90% by weight and which has been alkalinized, with nitrogen dioxide or a precursor thereof in sufficient amount to reduce the pH by at least 2.0 pH units. The process produces an organic fertilizer in which the percentage by weight of nitrogen in the form of oxides of nitrogen is higher than percentage by weight of nitrogen in the form of ammonium ion.