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首页> 外文期刊>Waste management & research >Household food waste to wastewater or to solid waste? That is the question
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Household food waste to wastewater or to solid waste? That is the question

机译：家庭食物废物是废水还是固体废物？就是那个问题

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Decision makers need sound analyses of economic and environmental impacts of options for managing household food waste. Food waste impacts public health (it rots, smells, and attracts rodents) and costs (it drives collection frequency). A life cycle inventory is used to quantify total materials, energy, costs and environmental flows for three municipal solid waste systems (collection followed by compost, waste-to-energy or landfill) and two wastewater systems (kitchen food waste disposer followed by rural on-site or municipal wastewater treatment) for food waste management. Inventory parameters are expressed per 100 kg of food waste (wet weight) to place data on a normalised basis for comparison. System boundaries include acquisition, use and decommissioning. Parameters include inputs (land, materials, water) and output emissions to air, water and land. Parameters are ranked simply from high to low. Ranking highest overall was the rural wastewater system, which has a high amount of food waste and carrier water relative to the total throughput over its design life. Waste-to-energy was second; burning food waste yields little exportable energy and is costly. Next, municipal wastewater tied with landfill. Municipal wastewater is low for land, material, energy and cost, but is highest for food waste by-product (sludge). Landfill tanks low for air emissions and cost. Compost ranks lowest; it has the lowest material and water inputs and generates the least wastewater and waterborne waste.
机译：决策者需要对管理家庭食物垃圾的选择方案的经济和环境影响进行合理的分析。餐厨垃圾影响公共卫生（腐烂，散发气味并吸引啮齿动物）和成本（驱动收集频率）。生命周期清单用于量化三个市政固体废物系统（收集，然后是堆肥，废物转化为能源或垃圾填埋场）和两个废水系统（厨房食物垃圾处理器，然后是农村）的总物料，能源，成本和环境流量。现场或市政废水处理）用于食物垃圾管理。库存参数以每100千克食物垃圾（湿重）表示，以归一化数据为基础进行比较。系统边界包括获取，使用和退役。参数包括输入（土地，材料，水）和向空气，水和土地的输出排放。参数仅从高到低排名。总体上排名最高的是农村废水系统，相对于其设计寿命内的总吞吐量而言，其食物垃圾和载水量很高。垃圾发电为第二位；燃烧食物垃圾产生的可出口能源很少，而且成本很高。接下来，将城市污水与垃圾填埋场捆绑在一起。市政废水的土地，材料，能源和成本较低，而餐厨垃圾副产物（污泥）则最高。垃圾箱的空气排放量低，成本低。堆肥排名最低；它的材料和水投入最少，产生的废水和水生废物最少。

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