本powerpoint演示文稿首先介绍项目目标: 制定剩余物管理的成本曲线 水处理厂。 实验过程包括以下内容: 根据工厂情况确定剩余产量 规模、处理类型和水源水质； 使用生产来确定剩余管理的规模 设施 两家工程公司为该项目制定了成本估算 设施的大小；和 第三家工程公司独立承担设施成本 验证成本估算。尺寸确定依据的总结包括以下内容: 群体选择 -选择覆盖美国环境保护局（USEPA）考虑的范围， 在10000-100000人口范围内选择三个值， 在100000以上选择六个值，最大人口为 100万人被考虑； 流量估计 -通过对WaterStats数据库的分析； 人均流量为150 gpcd； 设计-发现平均流量比为2: 1. 剩余产量 -根据ICR中超过4300个WTP记录计算的固体产量 数据库 高固体产量定义为产量的第90百分位 从河流源头， 低固体产量定义为产量的第50百分位 来自湖泊/水库。资本成本汇总包括以下内容: 资本成本的最大驱动力 剩余物管理设施是 脱水设施；和 一磅换一磅，资本就更少了 强化软化残渣处理； 然而，软化植物会产生 明显多于 凝结植物。验证摘要: 验证成本估算 成本曲线的25%以内； 验证成本估算 高于成本曲线上的点- 与不断增长的 详细信息请参见CH2M Hill的成本核算 工具和 验证表明，成本曲线并不是如此 高估建设成本 残留物管理设施。 进一步资料: 成本分析的结果如下: 发表于2008年3月的AWWA杂志 “实施残差”论文 管理:成本影响 凝固和软化植物 罗斯等人； 报告中向美国环保局提交的分析 “成本分析，以支持国家 饮用水处理厂 剩余物管理监管 选项“.AwwaRF项目#4086: 此处和中给出的成本曲线 这篇期刊文章可以用来 估算工厂的预算水平成本 希望实现残差 管理层:以及， AwwaRF项目#4086“最小化” 水处理剩余排放至 “地表水”将扩大这项工作 使公用事业公司更容易估算 剩余物管理成本。包括数字。

This powerpoint presentation begins by presenting the project goal: develop cost curves for residuals management at water treatment plants. The experimental process included the following: determine residuals production based on plant size, treatment type, and source water quality; use production to size residual management facilities; two engineering firms develop cost estimates for the facilities that were sized; and, third engineering firm independently costs facilities to validate cost estimates. Summary of basis for sizing includes the following: Population Selection - selected to cover range considered by U.S. Environmental Protection Agency (USEPA), three values selected in 10,000 - 100,000 population range, six values selected above 100,000, with maximum population of 1,000,000 considered; Flow Estimates - from analysis of WaterStats database; average per capita flow found to be 150 gpcd; design - average flow ratio found to be 2:1; Residuals Production - solids production calculated for over 4,300 WTP records in ICR database, high solids production defined as 90th percentile of production from river sources, low solids production defined as 50th percentile of production from lake/reservoir sources. Capital Cost Summary includes the following: the largest driver of capital costs for residuals management facilities is the dewatering facility; and, pound for pound, it is less capital intensive to treat softening residuals; however, softening plants generate significantly more residuals than coagulation plants. Validation summary: validation cost estimates generally within 25% of cost curves; validation cost estimates generally higher than points on cost curves - consistent with the increased level of detail available in CH2M Hill's costing tool; and, validation shows cost curves do not overestimate cost of constructing residuals management facilities. Further information: results of the costing analysis were presented in March 2008 Journal AWWA paper "Implementing residuals management: Cost implications for coagulation and softening plants" by Roth et al; analysis presented to USEPA in report "Costing Analysis to Support National Drinking water Treatment Plant Residuals Management Regulatory Options". AwwaRF Project #4086: the cost curves presented here and in the Journal article can be used to estimate budget level costs for plants looking to implement residuals management: and, AwwaRF Project #4086 "Minimizing Water Treatment Residual Discharges to Surface Waters" will expand on this work to make it easier for utilities to estimate costs of residuals management. Includes figures.