| 摘要 |
A continuous process is described for the preparation of fertilizers from animal waste consisting of the following steps: a) anaerobic fermentation of waste up to BOD5 of 300-2000, b) treatment with HNO3 up to pH 1-2, c) treatment with Ca(OH) up to pH 6.5-7 and S.A.R. index<6, with the addition of small quantities of H2O2 before or after step c).
|
