高燕妮 陈玉保 肖庆超 张无敌 尹芳 赵兴玲 赵永彦 杨顺平 王昌梅 杨红
摘要
[目的] 探讨哈密瓜皮作为沼气发酵原料的资源化利用可行性。[方法] 以哈密瓜皮为发酵原料,在恒温30 ℃下进行批量式沼气发酵试验,测定发酵过程中的TS产气潜力、VS产气潜力、日产气量、产气速率、pH等指标。[结果] 整个发酵过程哈密瓜皮总产气量3 575 ml,TS产气潜力为782 ml/g(TS),VS产气潜力874 ml/g(VS),且发酵前后pH变化不大,维持在沼气发酵的较佳范围内。[结论] 哈密瓜皮具有较好的产气潜力,是沼气发酵原料的新选择。
关键词 哈密瓜皮;沼气发酵,pH;产气潜力
中图分类号 S181.3 文献标识码 A 文章编号 0517-6611(2014)27-09499-02
Study on Biogas Production Potential of Hami Melon
GAO Yanni1, CHEN Yubao1*, XIAO Qingchao2et al
(1.School of Energy and Environmental Science, Yunnan Normal University, Kunming, Yunnan 650500; 2.Yunnan Xintian Environmental Analysis and Testing Co.Ltd., Kunming,Yunnan 650000)
Abstract [Objective] The research aimed to study the feasibility of biogas production using hami melon in a resource utilization way.[Method] Using hami melon as raw materials,the fermentation experiments were carried out at 30 ℃. Parameters of TS biogas production potential, VS biogas production potential, daily biogas output, biogas production rate and pH etc. were determined during experiments.[Result] The results showed that the total biogas production output of hami melon during fermentation experiment was 3 575 ml, TS biogas production potential was 782 ml/g(TS), VS biogas production potential was 874 ml/g(VS). Before and after the experiment, pH changed slightly, remaining within the suitable scope for fermentation. [Conclusion] This study proved that hami melon had good biogas production potential and could be used as raw materials for biogas production.
Key words Hami melon; Biogas fermentation; pH; Biogas production potential
哈密瓜是新疆的名优特产之一,属葫芦科(Cucurbitaceae)甜瓜属(Cucumis Linn),果实为瓠果,品质优良,味美甘甜,营养丰富[1]。我国哈密瓜的栽培面积和产量居世界第一位[2-3]。哈密瓜不但好吃,而且药用价值高。食用哈密瓜对人体造血机能有显著的促进作用,还具有益气、清肺热止咳的功效,适宜于肾病、胃病、贫血患者[4-5]。哈密瓜可以很好地预防一些疾病,哈密瓜中钾的含量是最高的。哈密瓜中含有丰富的抗氧化剂,这种抗氧化剂可以有效增强细胞抗防晒的能力,减少黑色素的形成。
在哈密瓜需求增加的同时,哈密瓜皮也随之增加,大量的果皮被随意丢弃,既造成环境污染问题也使得大量的生物质资源被浪费,目前以哈密瓜皮作为沼气发酵原料的试验尚未见报道。因此,该研究以哈密瓜皮为原料,探究其产沼气潜力,为解决其环境污染问题提供一条新型途径,同时实现哈密瓜皮的资源化利用。……