Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China.
Yangpulvbaofeng Agricultural Materials Co., Ltd, Danzhou, Hainan, 571744, China.
J Environ Manage. 2020 Aug 1;267:110649. doi: 10.1016/j.jenvman.2020.110649. Epub 2020 Apr 29.
This study used a laboratory-scale system to investigate the effects of calcium magnesium phosphate fertilizer (CaMgP), biochar, and spent mushroom substrate (SMS) on compost maturity and gasous emissions during pig manure composting. The results showed that the addition of CaMgP, Biochar or SMS had no negative effect on the quality and maturity of compost, and all three additives could reduce the emissions of ammonia (NH), hydrogen sulfide (HS), dimethyl sulfide (MeS) and dimethyl disulfide (MeSS). Among them, the effect of adding CaMgP on NH emission reduction was the most obvious, reduced 42.90%. The emission reduction of CaMgP to HS was similar to that of SMS, which decreased by 34.91% and 32.88% respectively. The emission reduction effects of the three additives on MeS and MeSS were obvious, all of which were over 50%. However, only adding SMS reduced the NO emission by 37.08%.
本研究采用实验室规模的系统，研究了钙镁磷酸盐肥料（CaMgP）、生物炭和废蘑菇基质（SMS）对猪粪堆肥成熟度和气体排放的影响。结果表明，添加 CaMgP、生物炭或 SMS 对堆肥的质量和成熟度没有负面影响，这三种添加剂都可以减少氨（NH）、硫化氢（HS）、二甲基硫（MeS）和二甲基二硫（MeSS）的排放。其中，添加 CaMgP 对 NH 减排的效果最明显，减少了 42.90%。CaMgP 对 HS 的减排效果与 SMS 相似，分别减少了 34.91%和 32.88%。三种添加剂对 MeS 和 MeSS 的减排效果明显，均在 50%以上。然而，只有添加 SMS 可使 NO 排放量减少 37.08%。
