农村固体废弃物处理现状分析

来源 :中国科技博览 | 被引量 : 0次 | 上传用户:kellyfly
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
随着我国改革开放和农业科学技术的飞速发展,农业经济效益取得了可喜的成绩.但长期以来,由于经济发展和各种人为因素以及自然退化,造成农村资源被过度开采,所产生的污染物被无控制的排放,使得农村社会和自然生存环境受到极大破坏.目前我国农村固体废弃物的主要处理方法:垃圾直接堆放,秸秆的燃烧、青贮,粪便秸秆及生活垃圾制沼气.以"资源化、无害化、减量化"为准则提出发展生态农业、处理和处置农村固体废弃物,从而加大资源的循环利用,改善农村生活环境,加快其经济的发展.
其他文献
The surfaces of the micron-sized HA particles were modified by in situ copolymerization of vinyl triethoxyl silane (VTES) and styrene (St). Then, the modified H
The microstructure of the prepared porous bioceramic material, including surface porosity and apparent contact area with the artificial mucus film are computed
The analytical electron microscopy (AEM) was employed to observe the intratissuelar distribution of polysorbnte 80 coated nanoparticles in brain with copper chl
To separate cadmium ions from aqueous solution efficiently,micellar-enhanced ultrafiltration(MEUF)of hollow ultrafiltration membrane was used,with sodium dodecy
本文针对抽油机设备损坏导致停井甚至上作业的问题,提出了加强抽油机井地面设施的保修,减少因地面设备损坏而造成的停井及躺井,节约费用及保证产量的平稳运行.
The dynamic restoration behavior of 99.99% polycrystalline aluminum was investigated.The deformation was carried out by compression test at 533-773 K and initia
A new biomimetic bone tissue engineering scaffold material, nano-HA/ PLGA-( PEG- ASP )n composite, was synthesized by a biologically inspired self assembling ap
FeAl/TiC composites were fabricated by reactive hot pressing blended elemental powders.The effects of TiC content,composition of the binder phase and Ni alloyin
Stress equilibrium equations, boundary- and continuity-conditions were used to establish a theoretical model of progressive debonding with friction at the debon
The jet co-flow packing tray(JCPT) with three different types of perforation in equal opening fraction was tested in two rectangular columns with 0.12 m in widt