城市生活垃圾管理从末端处置转向全生命周期管理,其制度框架通常包含哪些核心环节?
As municipal solid waste management shifts from end-of-pipe disposal toward life-cycle management, what core stages does the governing institutional framework typically comprise?
完整的体系一般覆盖源头减量、分类收集、运输与中转、资源化利用和安全处置五个环节。欧盟《废弃物框架指令》确立了污染者付费原则与五级废物层级——预防、再利用、回收、其他回收（含能量回收）、最终处置——要求成员国依序适用，填埋仅作最后手段。中国2019年起在重点城市推行生活垃圾分类制度，并通过原生垃圾零填埋目标倒逼焚烧和厨余处理能力建设。
A complete system generally spans five stages: source reduction, separate collection, transport and transfer, resource recovery, and safe disposal. The EU Waste Framework Directive pairs the polluter-pays principle with a five-step waste hierarchy—prevention, reuse, recycling, other recovery including energy recovery, and final disposal—which member states must apply in order, with landfilling reserved as the last resort. Since 2019 China has enforced mandatory household-waste sorting in major cities, using zero-landfill targets for untreated waste to drive expansion of incineration and food-waste processing capacity.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
欧盟指令2008/98/EC《废弃物框架指令》及修订版(2018)
EU Directive 2008/98/EC on waste (Waste Framework Directive), as amended 2018
#生活垃圾 #全生命周期管理
一座城市的生活垃圾管理体系由哪些环节构成?分类收集之后垃圾都去了哪里?
What links make up a city's municipal solid waste system, and where does waste actually go after source separation?
完整链条包括源头分类投放、密闭收运、转运压缩、分选与资源化(厨余厌氧产沼、可回收物再生)、焚烧发电与卫生填埋等末端处置,以及飞灰和渗滤液处理等二次污染控制。分类的价值在于把高热值的干垃圾送往焚烧、把湿垃圾转入生化处理,使整体回收率和能量利用效率同时提升。德国、日本等国的经验表明,末端能力规划必须与收费制度和监管数据公开配套,否则分类难以持续。
The chain runs from source-separated collection and sealed haulage through transfer stations to sorting and valorization (anaerobic digestion of organics, recycling of dry recyclables), energy-from-waste incineration and sanitary landfill as final sinks, plus secondary-pollution control for fly ash and leachate. Separation pays off because high-calorie dry fractions feed efficient incineration while wet organics go to biological treatment, lifting overall recovery and energy yields simultaneously. German and Japanese practice shows terminal capacity planning only works when paired with fee schemes and open monitoring data, otherwise separation programs stall.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
世界银行《城市固体废物简报》(What a Waste 2.0);国家发展改革委、住建部生活垃圾分类制度实施方案 ; 另见: World Bank, What a Waste 2.0: A Global Snapshot of Solid Waste Management to 2050; NDRC & MOHURD, Implementation Plan on Household Waste Sorting System (China)
World Bank, What a Waste 2.0: A Global Snapshot of Solid Waste Management to 2050; NDRC & MOHURD, Implementation Plan on Household Waste Sorting System (China) ; see also: 世界银行《城市固体废物简报》(What a Waste 2.0);国家发展改革委、住建部生活垃圾分类制度实施方案
#生活垃圾 #固废管理
生活垃圾分类的“四分类”是哪四类，为什么这样分？
What are the four household waste categories, and why this split?
通常是可回收物、厨余（湿）垃圾、有害垃圾、其他（干）垃圾。这样分是为了让能回收的回去、能堆肥的变土、有害的单独安全处理，剩下的才填埋焚烧。
Usually recyclables, kitchen (wet) waste, hazardous waste and other (dry) waste. The split sends recyclables back, composts organics, safely handles hazards and only landfills or burns what's left.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#四分类 #厨余 #有害垃圾
你的旧手机去哪了?一块电路板里藏着多少座「城市矿山」?
Where does your old phone go? How many urban mines hide inside one circuit board?
一吨废旧手机的含金量约是金矿石的三百倍:每部手机含金约0.03克,还有银、钯、铜与稀土。正规拆解流程是手工拆除电池防燃、破碎分选出金属富集体、湿法或火法冶金提炼,贵金属回收率可达九成以上。但全球电子垃圾的正规回收率仅两成出头,大量流入非正规渠道:露天酸洗烧板释放铅与二噁英,加纳阿格博罗什等地的污染触目惊心。《巴塞尔公约》限制危废跨境转移,欧盟WEEE指令强制生产者回收——你的抽屉深处,其实囤着一座待开采的矿山。
A tonne of discarded phones holds roughly three hundred times the gold of raw ore: about 0.03 grams per phone plus silver, palladium, copper and rare earths. Proper flows hand-strip batteries to prevent fires, shred and sort metal concentrates, then hydrometallurgically or pyrometallurgically recover precious metals above ninety percent rates. Yet barely a fifth of global e-waste enters formal channels; informal acid-leaching and cable-burning poison sites like Agbogbloshie in Ghana. The Basel Convention restricts hazardous exports and the EU WEEE directive mandates producer take-back — your drawer is hoarding an unmined urban mine.
难度 入门 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
Balde 等,《The Global E-waste Monitor》,United Nations University,2017
C. P. Balde et al., The Global E-waste Monitor, United Nations University, 2017
#电子垃圾 #城市矿山 #巴塞尔公约