沼气产品及设备质量安全现状、发展趋势及对策建议

沼气产品及设备是农村沼气建设的关键性和必要性装备,其质量安全状况直接影响我国沼气建设能否持续健康发展,也关乎广大沼气用户的切身利益和人身财产安全。文章分析了我国沼气产品及设备近年来产品种类不断增多、产业规模不断扩大和标准体系初步建立的发展现状,总结了我国沼气产品及设备总体质量状况较好,但产品技术含量不高、产品质量不稳定以及市场竞争机制尚未建立的质量现状,提出未来的发展趋势为逐步向以用户需求为主导的市场销售方向发展、逐步向以市场需求为主导的技术创新方向发展和逐步向以质量信誉为主导的生产管理方向发展,并提出了应加快推进沼气产业化市场化进程、应加快健全沼气技术标准体系和应加快建立质量安全监督机制的建议。

沼气产品常见故障判断与排除

介绍沼气产品常见故障及产生原因和排除方法。

家用沼气灶及配套产品常见故障原因分析及对策

本文分别对家用沼气灶、沼气调控器、输气管材管件、沼气灯、沼气饭煲以及热水器等沼气产品常见故障产生的原因进行了分析,并提出解决的对策,为沼气产品的合理使用及维护提供参考。

The Possibilities of Bioenergy Production from Whey

The wastes and the by-products of food industrial technologies are suitable for bioenergy generating because of the high organic matter content. Anaerobic digestion is the eldest technology for waste stabilization and however by controlled decomposition a high value and marketable energy source can be produced. Whey is normally used as a component of dairy products or as an additive for food product. In our work we focused on another utilization method： biogas generating from membrane separated fractions i.e.： permeate and concentrate of whey. The effect of the pH, thermal, microwave pre-treatment and their combinations on the biogas yield were investigated. Our results showed that the applied pre-treatments had significant effect on biogas production. In consequence of the hydrolysis of large molecules the biodegradability of the pre-treated whey fractions was enhanced, therefore the biogas and methane production yield increased significantly.