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Effect of increasing inoculum ratio on energy recovery from chicken manure for better use in Egyptian agricultural farms
Chemical and Biological Technologies in Agriculture ( IF 5.2 ) Pub Date : 2018-08-28 , DOI: 10.1186/s40538-018-0129-9
Ouahid Elasri , Mahmoud Salem , Mohamed Ramdani , Oulya Zaraali , Latrach Lahbib

Poultry production is one of the fastest growing agricultural activities in Egypt. This activity is delivering large quantities of chicken manure. This organic waste can have a negative impact on the environment and public health in the vicinity of the Egyptian agricultural farms. In this study, we treated this organic waste by anaerobic digestion for achieving the maximum production of biogas with a high percentage of methane. For this, we investigated the different ratio of bacterial inoculum and manure chicken content. Seven anaerobic mixtures with different inoculums (1:1, 1:2, 1:3, 1:4, 1:5, 1:6 and 1:7) were tested. All digesters are placed in a constant temperature 35 °C. Biogas and methane production during 50 days of incubation. The best ratio in terms of biogas produce is the low ratio (1:7) with a production of 73.3 Nml/gVS. But from a qualitative point of view, the largest ratio (1:1) was delivering a biogas with the highest calorific value in terms of methane content with 69.9% of biogas. The energy valorization of chicken manure depends on the waste/inoculum ratio. The maximum biogas produced is using the lowest ratio of waste and inoculum (1:7) but the highest methane percentage in the biogas is reached by the highest of ratio (1:1). Thus, from a qualitative point of view, the high percentage of methane is obtained for the highest ratio 1:1, however, from a quantitative point of view, the largest production is obtained from the lowest ratio 1:7.

中文翻译:

增加接种量对鸡粪能量回收的影响,以更好地用于埃及农业农场

家禽生产是埃及增长最快的农业活动之一。该活动正在输送大量的鸡粪。这种有机废物会对埃及农业农场附近的环境和公共健康产生负面影响。在这项研究中,我们通过厌氧消化处理了这种有机废物,以实现甲烷含量高的沼气的最大产量。为此,我们调查了细菌接种物和粪鸡含量的不同比例。测试了七种不同接种量的厌氧混合物(1:1、1:2、1:3、1:4、1:5、1:6和1:7)。将所有蒸煮器放置在35°C的恒温环境中。孵化50天期间产生沼气和甲烷。就沼气产量而言,最佳比例是低比例(1:7),产量为73.3 Nml / gVS。但是从定性的角度来看,最大比例(1:1)的沼气是以甲烷含量和69.9%的沼气提供最高的发热量的沼气。鸡粪的能量增值取决于废物/菌落的比例。产生的最大沼气使用的是废物和接种物的比例最低(1:7),但沼气中甲烷的百分比最高(1:1)最高。因此,从定性的观点来看,对于最高比例为1:1,获得了高百分比的甲烷,但是,从定量的观点来看,从最低的比例为1:7获得了最大的产量。1)交付的沼气具有最高的发热量(以甲烷含量计),其中沼气占69.9%。鸡粪的能量增值取决于废物/菌落的比例。产生的最大沼气使用的是废物和接种物的比例最低(1:7),但沼气中甲烷的百分比最高(1:1)最高。因此,从定性的观点来看,对于最高比例为1:1,获得了高百分比的甲烷,但是,从定量的观点来看,从最低的比例为1:7获得了最大的产量。1)交付的沼气具有最高的发热量(以甲烷含量计),其中沼气占69.9%。鸡粪的能量增值取决于废物/菌落的比例。产生的最大沼气使用的是废物和接种物的比例最低(1:7),但沼气中甲烷的百分比最高(1:1)最高。因此,从定性的观点来看,对于最高比例为1:1,获得了高百分比的甲烷,但是,从定量的观点来看,从最低的比例为1:7获得了最大的产量。7),但比例最高的比例(1:1)达到了沼气中最高的甲烷百分比。因此,从定性的观点来看,对于最高比例为1:1,获得了高百分比的甲烷,但是,从定量的观点来看,从最低的比例为1:7获得了最大的产量。7),但最高比例(1:1)达到了沼气中最高的甲烷百分比。因此,从定性的观点来看,对于最高比例为1:1,获得了高百分比的甲烷,但是,从定量的观点来看,从最低的比例为1:7获得了最大的产量。
更新日期:2018-08-28
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