ANALYSIS ON WHOLE CHAIN TECHNOLOGY OF LIVESTOCK MANURE RESOURCE UTILIZATION IN THE YANGTZE RIVER BASIN PLAIN
-
摘要: 长江流域是我国重要的畜禽养殖区,也是最重要的生态带和经济带,提高该区域畜禽粪污处理利用水平,对保护长江流域生态环境,推动区域经济可持续发展具有重要意义。以该区域平原地429个畜禽规模养殖场为研究对象,围绕畜禽粪污收集、处理、粪肥还田利用等畜禽粪污资源化利用全链条技术深入剖析,分析该区畜禽粪污资源化利用关键工艺技术与设施装备。结果表明:畜禽规模养殖场粪污收集方式以干清粪为主,固体粪便普遍采用堆沤处理,72.3%以上的养殖场堆(沤)肥设施面积符合规范要求;畜禽粪水处理主要采用贮存和厌氧发酵技术,仅17.89%的养殖场粪水贮存池容积和67.5%的养殖场沼气发酵容积达到建设规范要求;粪肥还田是粪污资源化利用主要方向,以水果蔬菜等经济作物为主,但存在养殖场配套粪肥消纳土地面积不足等问题,近25.56%的养殖场未达到要求。建议根据该区域养殖和区位条件,进一步规范提升粪污资源化利用技术,提高粪污资源化利用技术和装备水平,引导规模养殖场按照种养平衡的要求配套消纳土地,同时加强对施用粪肥的农田土壤进行跟踪评估,提高粪肥还田利用水平。Abstract: The middle and lower reaches of the Yangtze River Basin plain play an important role in livestock and poultry breeding areas in China.Improving the treatment and utilization level of livestock and poultry manure in this area is of great significance to protect the environment of the Yangtze River Basin and promote the sustainable development of the regional economy.To better track the progress of the treatment and utilization of manure and wastewater,a nationwide survey was conducted in 2018-2020,covering 429 pig,cattle and poultry farms.The technical pathway and facility construction for the treatment and utilization of manure and wastewater were thoroughly analyzed,from the aspects of the collection methods,treatment technologies,and utilization to the farmland.The results showed that dry-dung cleaning was the main method for manure and wastewater collection in most surveyed farms (85.71%),while water flushing and deep-pit were frequently adopted in 8.2% and 2.58% of the surveyed farms.Composting was widely used in the treatment of solid feces,accounting for 91% of the surveyed farms.Most of the treated manure and wastewater were used for fertilizers for the farmland with fruits and vegetables,while their application to the farmland with grain crops was still low.Only 25.56% of the large-scale livestock and poultry farms had insufficient farmland for manure and wastewater consumption.The overall dosage based on nitrogen demand was relatively higher than plant need,which caused water pollution.Meanwhile,manual fertilization was still the main method compared with mechanical fertilization.To improve the treatment and utilization of livestock and poultry manure and wastewater,it was suggested to further standardize and improve the utilization technologies of manure and sewage resources,improve the technology and equipment level of manure and sewage resources utilization,guide large-scale farms to prepare the consuming land according to the requirements of planting and breeding balance,and strengthen the tracking and evaluation of farmland soil applying manure,so as to improve the utilization level of manure.
-
[1] 农业现代化成就辉煌全面小康社会根基夯实[EB/OL]. http://www.moa.gov.cn/xw/zxfb/202105/t20210510_6367489.htm.2021-05-10. [2] 国务院办公厅.国务院办公厅关于加快推进畜禽养殖废弃物资源化利用的意见(国办发[2017] 48号)[EB/OL]. http:www gov cn zhengce content 2017-0612 content_5201790.htm.2017-06-12. [3] 中共中央国务院关于坚持农业农村优先发展做好"三农"工作的若干意见[J].中华人民共和国国务院公报,2019(7):25-33. [4] 董红敏,左玲玲,魏莎,等.建立畜禽废弃物养分管理制度促进种养结合绿色发展[J].中国科学院院刊, 2019; 34(2):56-65. [5] 关于发布《第二次全国污染源普查公报》的公告[EB/OL].中华人民共和国生态环境部,国家统计局,中华人民共和国农业农村部. http://www.mee.gov.cn/xxgk2018/xxgk/xxgk01/202006/t20200610_783547.html. 2020. [6] 关于印发《长江经济带生态环境保护规划》的通知(环规财[2017] 88号)[EB/OL]. http://www.mee.gov.cn/gkml/hbb/bwj/201707/t20170718_418053.htm.2017-07-17. [7] 肖琴,周振亚,罗其友.长江中下游地区畜禽承载力评估与预警分析[J].长江流域资源与环境,2019,28(9):2050-2058. [8] 张庆东,耿如林,戴晔.规模化猪场清粪工艺比选分析[J].中国畜牧兽医, 2013, 40(2):232-235. [9] 梁浩,吴德胜,赵明杰,等.好氧堆肥技术发展现状与应用[J].农业工程,2020,10(4):50-53. [10] 杨丽楠,李昂,袁春燕,等.半透膜覆盖好氧堆肥技术应用现状综述[J].环境科学学报, 2020, 40(10):3559-3564. [11] GB/T 36195-2018,畜禽粪便无害化处理技术规范[S].北京:全国畜牧业标准化技术委员会,2018. [12] GB/T 18596-2001,畜禽养殖业污染排放标准[S].北京:国家环境保护总局,2003. [13] 隋斌,孟海波,沈玉君,等.丹麦畜禽粪肥利用对中国种养结合循环农业发展的启示[J].农业工程学报, 2018, 34(12):9-15. [14] 丁京涛,张朋月,赵立欣,等.养殖粪水长期贮存过程理化特性变化规律[J].农业工程学报, 2020, 36(14):220-225. [15] 徐鹏翔,沈玉君,丁京涛,等.规模化养猪场粪污全量收集及贮存工艺设计[J].农业工程学报, 2020, 36(9):255-262. [16] 农业部办公厅关于印发《畜禽规模养殖场粪污资源化利用设施建设规范(试行)》的通知[EB/OL]. http://www.xmsyj.moa.gov.cn/zcjd/201904/t20190429_6287182.htm.20218-01-11. [17] 安思羽,李艳霞,张雪莲,等.我国果菜茶中畜禽粪便有机肥替代化肥潜力[J].农业环境科学学报, 2019, 38(8):1712-1722. [18] 农业农村部种植业管理司,全国农业技术推广服务中心,农业农村部科学施肥专家指导组.果菜茶有机肥替代化肥技术指导意见(上)[J].农机科技推广, 2018,(11):52-53. [19] 武淑霞,刘宏斌,黄宏坤,等.我国畜禽养殖粪污产生量及其资源化分析[J].中国工程科学,2018, 20(5):103-111. [20] 杨飞,杨世琦,诸云强,等.中国近30年畜禽养殖量及其耕地氮污染负荷分析[J].农业工程学报, 2013, 29(5):1-11. [21] DONG S S, SUI B, SHEN Y J, et al. Investigation and analysis of the linkage mechanism and whole process cost of livestock manure organic fertilizer[J]. International Journal of Agricultural Biological Engineering, 2020, 13(2):223-227. [22] 李红娜,吴华山,耿兵,等.我国畜禽养殖污染防治瓶颈问题及对策建议[J].环境工程技术学报,2020,10(2):167-172.
点击查看大图
计量
- 文章访问数: 285
- HTML全文浏览量: 30
- PDF下载量: 19
- 被引次数: 0