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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/67953

    Title: 下水污泥再利用方案探討;Scheme of sewage sludge recycling
    Authors: 程介羲;Cheng,Jie-xi
    Contributors: 土木工程學系在職專班
    Keywords: 下水污泥;污泥處理再利用技術;下水污泥灰渣;卜作嵐材料;Sewage Sludge;Sludge Treatment and Reuse Technology;Sewage Sludge Ash;Pozzolanic Material
    Date: 2015-07-29
    Issue Date: 2015-09-23 10:05:26 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 摘要
    量指標,行政院積極推動全國污水下水道建設,於103 年9 月10 日核定內
    政部營建署所提「污水下水道第五期建設計畫」,計畫於104~109 年將公共
    Sewage systems are an indispensable public facility of modern urban areas,
    and are an indicator of national competitiveness. As part of its active efforts in
    developing nationwide sewerage systems, the Executive Yuan ratified the
    “Phase 5 Sewage System Construction Plan” of the Construction and Planning
    Agency, which aims to increase the ratio of household pipelines connected to
    public sewage to 35.10% and the overall ratio of sewage treatment to 60.80%
    between 2015 and 2020; sewage sludge volume is expected to show sequential
    growth each year.
    Sewage sludge is rich with organic matter, inorganic matter, and heavy metals.
    This study collects data on domestic and foreign laws and regulations related to
    sewage sludge reuse, reuse technologies, characteristics of sewage sludge in
    Taiwan, corresponding laws and regulations, government policy, and the
    national situation. Sewage sludge reuse technology is divided into three
    categories, namely “renewable energy,” “green farmland” and “construction
    material,” and the strengths and weaknesses of each technology is analyzed from
    the perspective of technology, market, environment, and laws and regulations,
    evaluating the most technology for sludge reduction and discussing its
    Considering that there are many methods for reusing sewage sludge, but sewage
    sludge reuse products cannot be used in farmland due to current laws and
    regulations, as well as objections from the Council of Agriculture (COA), this
    study proposes the use of sewage sludge carbonization equipment together with
    a cement kiln, so as to produce a product that conforms to current laws and
    regulations and satisfies the COA’s requirements.
    This study mainly uses waste heat from a cement kiln to carbonize sewage
    sludge. The organic waste gas generated from drying and carbonizing the
    sewage sludge is channeled back into the cement kiln for combustion, and then
    the carbonized product (auxiliary fuel) is mixed with coal and used as fuel for
    the cement making process. The ultimate objective is to mix sewage sludge ash
    into coal ash and directly uses it as part of the pozzolanic material application
    Appears in Collections:[土木工程學系碩士在職專班] 博碩士論文

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