ANALYSIS OF UTILIZATION AND DISPOSAL METHODS OF TYPICAL RURAL SOLID WASTE IN CHINA BASED ON ITS CHARACTERISTICS
-
摘要: 基于全国12个省份、72个典型村镇生活垃圾的采样调查,系统分析了垃圾组分组成、含水率、湿基低位热值、肥效指标(有机质、TN、TP、TK)及重金属含量对焚烧、堆肥及填埋技术可行性的影响。结果表明:村镇生活垃圾全组分、可燃组分、可燃组分(厨余类除外)的湿基低位热值分别为4263,5652,13772 kJ/kg,村镇生活垃圾进行焚烧处理,分选环节可显著提高湿基低位热值。村镇生活垃圾有机质、含水率、N、P、K含量等方面,均基本满足堆肥化处理有关要求,可进行堆肥处理,但部分地区Cd含量超标,应强化源头分类,控制堆肥产品的品质,降低环境风险。村镇生活垃圾填埋处理前对可回收垃圾和有害垃圾进行分类回收,可减少约1/3的填埋垃圾量,并最终减少垃圾填埋渗滤液的污染风险。Abstract: Based on the sampling survey of domestic waste in 72 typical villages and towns in 12 provinces, the impacts of waste composition, water content, wet base low calorific value, fertilizer efficiency indicators (organic matter, TN, TP, TK) and heavy metal content on the feasibility of incineration, composting and landfill technology was systematically analyzed. The results showed that the wet base low calorific value of the whole components, combustible components, and combustible components except kitchen waste of village and town domestic waste were 4263, 5652, 13772 kJ/kg, respectively. The wet base low calorific value of village and town domestic waste could be significantly increased in the process of sorting after incineration. The organic matter, water content, nitrogen, phosphorus, potassium content and some other indexes of the household garbage in villages and towns basically meet the requirements of composting treatment. Composting treatment can be carried out, but Cd content in some areas exceeds the standard. Therefore, source classification should be strengthened to control the quality of composting products and reduce environmental risks. Classified recycling of recyclable waste and hazardous waste before the landfill treatment of rural domestic waste can reduce the amount of landfill waste by about 1/3, and ultimately reduce the pollution risk of landfill leachate.
-
Key words:
- rural living solid waste /
- incineration /
- compost /
- landfill /
- waste sorting
-
[1] 韩智勇,费勇强,刘丹,等.中国农村生活垃圾的产生量与物理特性分析及处理建议[J].农业工程学报,2017,33(15):1-14. [2] YING C M, LATIFAH A M. Overview of household solid waste recycling policy status and challenges in Malaysia[J]. Resources, Conservation & Recycling,2014, 82(12):50-61. [3] 张益. 我国农村生活垃圾处理现状[N]. 中国建设报,2015-08-21(6). [4] 张英民,尚晓博,李开明,等.城市生活垃圾处理技术现状与管理对策[J].生态环境学报,2011,20(2):389-396. [5] 侯云峰.我国城市生活垃圾处理技术现状[J].中国资源综合利用,2012,30(2):50-52. [6] 严骁,贾燕,王美欢,等.农村垃圾小型焚烧炉烟气污染物排放特征及影响因素研究[J].农业环境科学学报,2018,37(4):820-824. [7] FU J P, HAN J L, YU X W, et al. Possible sources of PCDD/Fs in atmosphere of a certain district in guangdong[J]. Environmental Science, 2017, 38(2):502-509. [8] 郭卫广,刘建国,张来,等. 中国城市垃圾典型可行焚烧技术的综合评价[J]. 环境科学研究,2012, 25(8):941-946. [9] LI J R, ZUO J, GUO H, et al. Willingness to pay for higher construction waste landfill charge:a comparative study in Shenzhen and Qingdao, China[J]. Waste management, 2018, 81(12):226-233. [10] 国家环境保护总局. CJ/T 313-2009生活垃圾采样和分析方法[S].北京:中国环境科学出版社,2009. [11] 聂永丰. 三废处理工程技术手册-固体废物卷[M].北京:化学工业出版社,2000. [12] 晏卓逸,岳波,高红,等. 我国村镇生活垃圾可燃组分基本特征及其时空差异[J]. 环境科学,2017, 38(7):3078-3084. [13] 王桂琴,张红玉,王典,等. 北京市城区生活垃圾组成及特性分析[J]. 环境工程,2018, 36(4):132-136. [14] 李国学,李玉春,李彦富,等. 固体废物堆肥化及堆肥添加剂研究进展[J]. 农业环境科学学报,2003,22(2):252-256. [15] CASTALDI P, ALBERTI G, MERELLA R, et al. Study of the organic matter evolution during municipal solid waste composting aimed at identifying suitable parameters for the evaluation of compost maturity[J].Waste Management,2005, 25(2):209-213. [16] 魏潇潇,王小铭,李蕾,等.1979-2016年中国城市生活垃圾产生和处理时空特征[J]. 中国环境科学, 2018,38(10):3833-3843. [17] 国家环境保护总局. 城镇垃圾农用控制标准:GB 8172-1987[S].北京:中国环境科学出版社,1987. [18] 范沁.农村生活垃圾堆肥施加对植物及土壤环境影响研究[D]. 杭州:浙江大学,2018. [19] SIFAU A A, MARY B O, ADENIYI O T. Soil amendment with compost and crop growth stages influenced heavy metal uptake and distribution in maize crop grown on lead-acid battery waste contaminated soil[J]. Journal of Environmental Chemical Engineering,2018, 6(4):4809-4819. [20] 唐志华,呼和涛力,刘敏茹,等.生活垃圾重金属对环卫工人体健康影响研究[J].中国环境科学,2019, 39(3):1278-1288. [21] 巫丽俊,王丹丹,钟树明,等. 农村生活垃圾常用处理技术及其发展趋势[J]. 安徽农业科学,2013, 41(19):8271-8272,8297. [22] 生态环境部.土壤环境质量标准农用地土壤污染风险管控标准(试行):GB 15618-2018[S].北京:中国环境科学出版社,2018.
点击查看大图
计量
- 文章访问数: 167
- HTML全文浏览量: 21
- PDF下载量: 8
- 被引次数: 0