TW201237331A - Method of preprocessing incineration ash - Google Patents

Method of preprocessing incineration ash Download PDF

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TW201237331A
TW201237331A TW100109140A TW100109140A TW201237331A TW 201237331 A TW201237331 A TW 201237331A TW 100109140 A TW100109140 A TW 100109140A TW 100109140 A TW100109140 A TW 100109140A TW 201237331 A TW201237331 A TW 201237331A
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Taiwan
Prior art keywords
incineration ash
temperature
treatment
pretreatment
water
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TW100109140A
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Chinese (zh)
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TWI567344B (en
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Satoshi Yajima
Hiroshi Kubota
Taro Okamoto
Hiromi Yamada
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Fujita Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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Abstract

A method for preprocessing incineration ash is provided. The preprocessing method has the following advantages. The realization of promoting the elution of a material which is at a state of being easily to be eluted in water, and poor solubilization of a material which is at a state of being difficult to be eluted in water, the material being among the salts, heavy metals or organic compounds and other substances contained in the incineration ash, is achieved by performing effective temperature maintenance of the incineration ash during the preprocessing period, so as to modify incineration ash into a state of high safety. The preprocessing method includes housing incineration ash in preprocessing tank and performing preprocessing steps of sprinkling and ventilation on the incineration ash before the incineration ash, is buried or recycled as aggregate, landfill material, or backfill material, wherein the temperature of the incineration ash is kept at a temperature equal to or greater than 20 DEG C and equal to or less than 60 DEG C for at least 10 days when preprocessing starts.

Description

201237331 六、發明說明: 【發明所屬之技術領域】 本發明是關於-種在將焚化灰(底 灰,以下㈣錢)轉热於最料 ^ 之=者作為骨材(哪egate)、填土材料、回 以再利用之前進行的前置處理的技術,尤其是關於一種適 ===物或重金屬、鹽類等或抑制溶出的有效技術。 ^於周邊居民而言,廢棄物最終處理場作為麻煩設施 對於對周邊環境的影響的不安感根深蒂固, 新的處理場變得困難。门思。為此於日本各地建設 有於最終處理場中填埋廢棄物之前, 進订使廢棄_先變化(财化)料 r==理(!置處理)。亦即,該前置處二 ν, μ里“’人為地使填埋廢棄物巾所含的有 機物或鹽類、重金料穩定為難以溶“安全性高的狀能。 作為此,技術而例如有以下方法,即如專利文獻!所 ^不般,於輸之麵廢棄魏淨。财法是#由機械性 2命廢棄物而將廢棄物巾所含的有機物或_洗掉來使 廢棄物穩定化的方法。又存在町方法,即如專利文獻2 所揭不般’於填埋之前對廢棄物進行财以及通氣,藉此 ,進^棄物敎化。該方法是藉域水及通氣而將廢棄物 中的有機物或鹽類、重金屬等洗掉或者使之不溶化的方 4 201237331 f f\j / ' 述方法為促進廢棄物的穩定化的技術。 系统ΐό Γ專利文獻3中揭示有關於如下祕的技術,該 除重金屬或ft與飛灰(flyash))中去 加以利用。戴奥辛()等有害物纽作為有價值物 然而,如上述專利文獻丨、專利 1 情分為以機械性的洗淨對廢棄物進行前置處理: 二及通氣而對廢棄物進行前置處理的方法。 及量淨方法巾’需要祕洗淨的設備、動力、以 的洗淨水的處理。另-方面,於麗水、通氣的 少。^〃機械洗淨減,機械設備及洗淨水的處理負擔 變長。、因此另此:::::廢棄物穩定化的前置處理期間 理的用地面積的=中θ附帶性地產生用以進行前置處 物的處理方ί 用以消除上述不良情形的廢棄 [先前技術文獻]專利文獻5、專利文獻6)。 [專利文獻] |利文獻1]日本專利特開2〇〇2 —59廳號公報 利文獻2]日本專利特開2_—281_號公報 利文獻3]日本專利特開2〇〇3 — 53298號公報 利文獻4]日本專利特開2〇〇8_Μ6%7號公報 利文獻5]日本專利特開2〇〇9_ 131757號公報 利文獻61日本專利特開2〇〇9-241〇53號公報 201237331 【發明内容】 [發明所欲解決的問題] 本發明是與先前申請案的改良相關者。 本發明者等人針對作為廢棄物的焚化灰的前置處理 持續進行銳意研究。最終著眼於焚化灰的前置處理效果及 前置處理期間會因前置處理期間中的焚化灰的溫度而受到 影響。 亦即’對於在季節之間氣溫、環境氣體溫度的不同在 焚化灰溫度'前置處理效果及前置處理期間造成的影響進 行檢a寸’ §式驗結果如下所示。 瑪锨足以下述方式進行 _ ____ 尚:〇·4公尺的測試槽中以高度:〇3公尺、密度:13克〆 立方公分的方式搬入、鋪平焚化灰,從上面進行灑水(13 公釐/次X3次/日=4公釐/日),從下面進行通氣(線速度:2 趙溫度的過程有夏季期間(期 季期間(期間平均氣溫:10.2-C) 及;季期間(期間平均氣溫:7.3。(^。 表1别置處理巧間中的平均值 — 冬季期間 夏季期間 期間平均氣溫(。〇) —U_ W个字朋間 期間平均濕度 68 1 _72,5_ 28.5 10.2 期間焚化灰内的平均 溫度(°c) -_ 7.9 __§63_ 11.6 試驗結果: 201237331 圖HA)、圖1(B)、圖1(C)分別繪示在夏季期間、秋季 期間及冬季期間,前置處理試驗期間中環境氣體(氣溫)及 焚化灰溫度的經時變化。 而且’作為前置處理效果的指標,圖2繪示滲出水的 導電度(Electrical conductance,EC )的值,圖3繪示、灸出 水中所含有的TOC (總有機碳)的濃度。 〆 如圖1(A)、圖1(B)、圖1(C)所示,除了環境氣體顯示 急劇變化的期間,焚化灰的溫度大致上會隨著環境氣體田 度的變化而變化。在冬季期間及秋季期間,發現下述結果皿 試驗開始之後焚化灰溫度有較環境氣體溫度高的傾向3 · ^開始H)日域_,肢灰溫錄敍無體^ 度大致上相同的溫度。 兄札體槪 而且’如圖2、圖3所示,發現下述結果:在 高的期間(夏季期間:29.6。〇與平均氣溫低門 =^ C、秋季期間:1(U°C)的渗出水的沈值^ ^遭度的經日後化抑。㈣水的Ec鋪 = 門子/公尺(S/m)以下的期間,在夏季期 3〇二·2西 =對於夏季期間的冬季期間則為6〇日以上 也顯示出有相同的傾向。 / 辰度 ^些結果看來,其教示了前置處理射种的焚化灰 處理效果及前置處理期間造成影響。本發明 終者眼於因前置處理期間中的焚化灰的溫度而受 本發明是有祕上述事情而提出的。 201237331 在因季節而有氣溫差的地域中,在前置處理期間中的 王哀境氣體溫度對焚化灰的溫度造成影響的情況下,焚化灰 的前置處理期間或效果在每個季節並不相同。 本發明的目的在於提供一種有利的焚化灰的前置處 理方法,藉由在前置處理期間中有效地進行焚化灰的溫度 條件的維持管理,而實現將焚化灰中所含有的鹽類、重金 屬或有機物等物質中,使在水中為容易溶出狀態的物質的 促進溶出,並使在水中為難以溶出狀態的物質難溶化,而 將焚化灰改質成安全性高的狀態。 [解決問題的技術手段] 亦即,本發明是-種焚化灰的前置處理方法,於將焚 化灰填埋之别或者作為骨材、填土材料、回填材料等加以 再利用之前’將焚化妹容於前置處_,對上述焚化灰 進行灑水處理及通氣處理的前置處理,其特徵在於:從前 置處理開始至少10日之間,維持上述焚化灰的 以上且60°C以下。 本电明的特徵在於:從上述前置處理槽的底面 積高度為〇.8公尺以上,堆積初期從 、义產生的熱保持在上述前置處理槽内。 月的特徵在於:在上述堆積的焚化灰上面 性及透水性的塾子㈣’以抑制上述焚化灰 而且’本發明㈣徵在於:上述前置處理槽且有底 則壁,上述側壁從上述底壁的周圍立起,使上述底壁及 8 201237331 上述:壁㈣有絕触,鱗虹㈣化灰的溫度降低。 與側ί且上料徵纽4賴置處_具有底壁 7.;f ,ΒιΙ^ n、從上述底壁的周圍立起,從上述底壁或 …土加熱上述焚化灰,以抑制上述焚化灰的溫度降低。 寸署本發㈣特徵在於理進行從上述 :二===述通氣處理進行從上述前置處 而且本發明的特徵在於:從前置處 曰之間,轉上述焚化灰的溫度為贼社且机;下仙 [發明的效果] 根據本發明,藉由在前置處理期間中有效地進行焚化 持管理’可以使在水中為容易溶出狀態 的物質促進洛出’並使在水中為難以溶出狀態的物質難溶 化’而I以在短期間内降低焚化灰的EC值及TOC濃度。 在則置處理射种進行焚化灰的溫度條件的維持管 在堆積初植上化灰產生的熱_在上述前 地、曰内,並利用這種熱,在企圖使依據環境氣體溫度 而用,皿度條件的維持管理的加熱器所花費的能源的低減 化上是有利的。 —為讓本發明之上述特徵和優點能更明顯易懂,下文特 舉實施例,並配合所_式作詳細說明如下。 【實施方式】 本發明例如於進行焚化灰的填埋處理的最終處理場 的一部分或者將焚化灰作為骨材、ί真土材料、回填材料等201237331 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to the use of incineration ash (bottom ash, the following (four) money) for the most material = as the aggregate, which fills the soil Materials, techniques for pre-treatment prior to reuse, especially for an effective technique that is suitable for === or heavy metals, salts, etc. or inhibits dissolution. ^In the case of the surrounding residents, the waste disposal site is a troublesome facility. The sense of uneasiness about the impact on the surrounding environment is deep-rooted, and the new disposal site becomes difficult. Doors. For this reason, before the construction of waste disposal waste in the final disposal site in Japan, the waste is changed to the first change (financialization) material r== rational (! processing). In other words, the front portion of the ν, μ "" artificially stabilizes the organic matter, salt, and heavy metal contained in the landfill waste towel into a "safe" state. As such, the technology has, for example, the following method, such as a patent document! No, in the face of losing, Wei Jing was abandoned. The financial method is a method of stabilizing the waste by washing off the organic matter or _ contained in the waste towel by mechanical waste. Further, there is a method in which the product is sterilized by the waste and ventilated before the landfill as disclosed in Patent Document 2, whereby the waste material is degraded. This method is a technique for washing away or insolubilizing organic substances, salts, heavy metals, etc. in wastes by using water and aeration. 201237331 f f\j / ' The method described is a technique for promoting the stabilization of waste. The system ΐό Γ Patent Document 3 discloses a technique for removing the heavy metal or ft and flyash. Dangerous substances such as dioxin () are valuable. However, as described in the above-mentioned patent documents, patent 1 is divided into pre-treatment of waste by mechanical cleaning: second, and pre-treatment of waste by ventilation. method. And the amount of clean method towel 'requires the treatment of equipment, power, and washing water for secret washing. On the other hand, Yu Lishui and less ventilation. ^ 〃 Mechanical cleaning and reduction, the processing burden of mechanical equipment and washing water becomes longer. Therefore, the following::::: The area of the land used during the pre-treatment of the waste stabilization = the middle θ is incidentally generated for the processing of the pre-position, and is used to eliminate the above-mentioned undesirable situation [ Prior art document] Patent Document 5, Patent Document 6). [Patent Document] | Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. 2, No. 2, No. 59-59, No. 2, Japanese Patent Laid-Open No. 2--281, No. 2, Japanese Patent Laid-Open No. 2, No. Japanese Patent Laid-Open Publication No. 4 〇〇 Μ Μ Μ Μ 7 7 利 利 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 61 61 61 61 61 61 61 61 61 61 61 61 61 61 201237331 [Description of the Invention] [Problems to be Solved by the Invention] The present invention is related to the improvement of the prior application. The present inventors have continued to conduct intensive studies on the pretreatment of incineration ash as waste. The final focus on the pre-treatment effect of the incineration ash and the pre-treatment period are affected by the temperature of the incineration ash during the pre-treatment period. That is, the results of the pre-treatment effect and the pre-treatment period of the temperature difference between the seasons and the ambient gas temperature are set as follows. Malang is enough to carry out the following methods _ ____ Still: 〇·4 meters in the test tank, the height: 〇 3 meters, density: 13 grams 〆 cubic centimeters to move in, flatten the incineration ash, sprinkle water from above ( 13 mm / time X3 times / day = 4 mm / day), ventilation from below (linear velocity: 2 Zhao temperature process has summer period (season period (period temperature: 10.2-C) and; season period (The average temperature during the period: 7.3. (^. Table 1 is the average value in the processing interval - Average temperature during the summer period during the winter period (.〇) - U_ W average period during the inter-word period 68 1 _72, 5_ 28.5 10.2 Average temperature in incineration ash during period (°c) -_ 7.9 __§63_ 11.6 Test results: 201237331 Figure HA), Figure 1 (B), Figure 1 (C) are shown during summer, autumn and winter, respectively. During the pre-treatment test period, the ambient gas (air temperature) and the incineration ash temperature change over time. Moreover, as an indicator of the pretreatment effect, Figure 2 shows the value of the conductivity of the exuded water (Electrical conductance (EC), Figure 3 The concentration of TOC (total organic carbon) contained in the moxibustion water is shown. As shown in Fig. 1(A), Fig. 1(B), and Fig. 1(C), the temperature of the incineration ash generally changes with the change of the environmental gas field, except during the period in which the ambient gas shows abrupt changes. During the winter and autumn periods, the following results were found. The incineration ash temperature was higher than the ambient gas temperature after the start of the test. 3 · ^ Start H) Day _, the limb ash temperature recorded the same temperature as the body. As shown in Figure 2 and Figure 3, the following results were found: during the high period (summer period: 29.6. 〇 with average temperature is low = ^ C, autumn period: 1 (U ° C) The sinking value of the oozing water is reduced afterwards. (4) The Ec shop of water = the period below the gate/meter (S/m), during the summer period 3 〇 2 · 2 west = for the winter during the summer During the period of 6 days or more, the same tendency was also observed. / The results of the test showed that it showed the effect of the incineration ash treatment of the pre-treatment seed and the effect during the pre-treatment. The present invention has been made to be aware of the above-mentioned problems due to the temperature of the incineration ash during the pretreatment process. 201237331 In a region where there is a temperature difference due to seasons, the pre-treatment period or effect of the incineration ash is different for each season when the temperature of the king's sorrowful gas during the pre-treatment period affects the temperature of the incineration ash. It is an object of the present invention to provide an advantageous pretreatment method for incineration ash, which realizes the salt and heavy metal contained in the incineration ash by effectively maintaining the temperature condition of the incineration ash during the pretreatment process. In a substance such as an organic substance, the substance which is in an easily eluted state in water is eluted, and the substance which is in a state of being difficult to elute in water is hardly melted, and the incineration ash is reformed to a state of high safety. [Technical means for solving the problem] That is, the present invention is a pretreatment method for incineration ash, which is to be incinerated before the incineration ash is buried or reused as an aggregate, a fill material, a backfill material, or the like. The pre-treatment of the incineration ash and the aeration treatment of the incineration ash is characterized in that the above-mentioned incineration ash is maintained at a temperature of 60 ° C or less between at least 10 days from the pretreatment. . The present invention is characterized in that the height of the bottom surface of the pre-treatment tank is 〇. 8 meters or more, and heat generated from the initial stage of deposition is retained in the pre-treatment tank. The month is characterized by: the above-mentioned stacked incineration ash, the upper and the water-permeable scorpion (4)' to suppress the incineration ash and the invention (4) is characterized in that: the pre-treatment tank has a bottom wall, and the side wall is from the bottom The wall is raised around, so that the bottom wall and 8 201237331 above: the wall (four) has a touch, and the temperature of the scale (four) ash is lowered. And the side 且 and the loading levy 4 _ having a bottom wall 7.; f, ΒιΙ^ n, rising from the periphery of the bottom wall, heating the incineration ash from the bottom wall or ... soil to suppress the incineration The temperature of the ash is lowered. The present invention is characterized in that the above-mentioned front position is carried out from the above-mentioned two:=== aeration treatment, and the present invention is characterized in that the temperature of the incineration ash is changed from the front position to the thief. [Effects of the Invention] According to the present invention, by effectively performing incineration management during the pre-treatment period, it is possible to promote a substance which is in an easily eluted state in water and to make it difficult to dissolve in water. The substance is difficult to dissolve, and I reduces the EC value and TOC concentration of the incineration ash in a short period of time. In the case where the temperature of the incineration ash is processed, the heat generated by the ash is accumulated in the pre-planted ground, and the heat is used in an attempt to make the temperature according to the ambient gas. It is advantageous to reduce the energy consumption of the heater for the maintenance of the condition of the dish. In order to make the above features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail below. [Embodiment] The present invention is, for example, a part of a final treatment field for performing landfill treatment of incineration ash or using incineration ash as an aggregate material, a ruthenium material, a backfill material, or the like.

201237331 L 加以再利用的地方的—部分 置處理裝置並不限定於固定式的震 動的貨櫃(container)方式或過去習^ 設置前置處理裝置。上述前 將焚化灰投入前置處搜槽, 行設定密度、設定厚度的分散。 9裝置’也可以採用能夠移 習知的各種構成。 ’投入後,利用挖土機等進 然後,在對上述焚化灰進行灑 置處理時,從前置處理開始至少1〇 灰的溫度為20°C以上且6〇〇c以下。 灑水處理及通氣處理的前 10曰之間,維持上述焚化 在前置處裡中’由於同時進行溶出促進及難溶化,因 此為I在早期錄ifc水水f蚊化,在科加滲出水的濃 度的範圍内促進溶出並在另-方面促雜溶化的溫度的設 定疋必要的。溫度設定是困難的,但根據下賴序設定前 置處理溫度的設定溫度的範圍。 (1)下限值的設定 在習知方法(前置處理溫度受到環境氣體溫度影響的 情況下)的试驗結果(圖2及圖3)中,在7。〇〜29°C之間,由 於EC值及T0C濃度都發現有在前置處理溫度高的情況下 促進滲出水的EC值及TOC濃度降低的傾向,因而認為於 7°C〜29°C之間在不影響滲出水濃度的範圍内設定變化溶 出促進及難溶化效果的溫度,評價滲出水濃度受到溫度的 影響與焚化灰之溶出受到溫度的影響,而檢討出前置處理 溫度的下限值。 方法: 將焚化灰50克(濕重)密封保存於100〇毫升的聚乙烯 201237331 :置在保持5C、崎的氣溫雜 度态内。靜置4〇日後,加入5〇〇毫升蒸餾水震動6小時, 對於上澄液(溶出液)進行EC值及TOC、Ca、]sfa的濃产八 析刀析結果如圖4(A)〜圖4(D)所示。 結果的分析: 抑制溶出的溫度範圍: 从j 5°C〜40°C的範圍内,確認了 EC值及Ca的濃度合 P近著鈿置處理溫度提高而降低。而且,從習知方法所八在 7°C〜29°C的範圍内隨著前置處理溫度提高滲出水的^值 的降低比例會增加的觀點來看,而認為ca等對Ec值、止 影響的鹽類難溶化。從這些結果看來,在〜4〇它二範 圍内’藉由提高並維持前置處理溫度’可以期待抑制從$ 化灰的溶出的效果。 < 在滲出水濃度不受到影響的範圍内的促進溶出的溫 度範圍 / 1 在5°C〜40°C的範圍内,確認了 TOC的濃度及Na的 濃度會隨著前置處理溫度提高而上升。Na為對ec值造成 影響的鹽類,從習知方法所示在7°C〜29°C的範圍内隨著 前置處理溫度提高滲出水的EC值的降低比例會增加的觀 點來看,而認為在此情況下的Na的溶出的促進是在滲出 水濃度不受到影響的範圍内的促進溶出。 而且,對於TOC,20°C〜40°C與5°C相比較,在20°C 〜40°C的溶出被促進了。從習知方法所示在7°C〜29°C的 範圍内隨著前置處理溫度提高滲出水的TOC濃度的降低 11 201237331 / / V/ / 比例會,加的觀點來看,而認為在此情況下的T〇c的溶出 的,進疋在渗出水的TQC濃度不受到景彡響的範圍内的促 進〉谷出,並認為對於TOC,20。〇是在滲出水的T〇C濃度 不文到影響的範圍内的促進溶出的下限溫度。 從上述結果來看’在不增加滲出水濃度的範圍一邊促 進溶出、一邊促進難溶化的溫度的下限值設定為20。〇。 (2)上限值的設定 從圖4(A)至圖4(D)所示的溶出試驗結果來看,認為隨 著溫度的提尚而有抑制一部份鹽類的溶出、促進T〇c的溶 出的效果’並認為表現出效果是在6〇。〇以上的設定範圍, 若考慮到為了設定的投入能源等,由於認為不是實際的設 定’以60°C為上限’但認為在前置處理期間中焚化灰的自 己發熱現象(包含有保溫措施的情況)的範圍中,以此過程 來設定前置處理溫度也是妥當的。在此情況下,焚化灰有 超過60°C的溫度是不可抗拒的。 前置處裡中需要加溫或絕熱的溫度 從上述(1)的結果來看,為了維持前置處理效果,而認 為在前置處理期間中的焚化灰溫度在低於20°C的情況 下,必須藉由前置處理槽的絕熱或加溫等,將焚化灰溫度 維持在20°C以上。 從前置處理開始至少40日之間進行上述溫度管理, 如圖9、圖10所示,經過40日後,由於TOC濃度或EC 值等為極低的值,因此使TOC濃度或EC值為低值,在安 定上是有利的。 12 201237331 但是,在必須要加溫的情況下,從有效率的能源利用 的觀點來看,使加溫期間未滿4〇曰是不可抗拒的。例如, 將從開始到至少1〇日間設定為加熱期間即可。作為其效果 的根據’如圖2、圖3(圖中沒有點的是因為沒有取得渗出 水)可以知道,在溫度高的夏季期間EC值、TOC濃度的值 在初期的1〇日間降低很大的值。另一方面,與10日以後 溫度為低的情況相比,EC值、T〇c濃度的值的減低幅度 =大小並沒有改變。由這些結果看來,特別是初期的溫度 管理,亦即從前置處理開始至少10日之間的溫度管理是很 重要的,也就是在初期取得加溫的效果。 〜另一方面,在填埋初期從焚化灰產生熱。將在堆積初 d攸火化灰產生的熱保持在前置處理槽内,並利用這種 熱’在企圖使依據環境氣體溫度而用於溫度條件的唯持管 理的加熱料所花費的能源的低減化上是有利的的 作為將在堆積初期從焚化灰產生的熱保持在前置處 言=的-個態樣,從前置處理槽的底面的焚化灰的堆積 G.8么尺以上。若焚化灰的堆積高度為㈣公尺以 有利的於來自上面的冷卻並維持焚化灰的溫度上是 處理槽内的必灰產生的熱保持在前置 中也:::产二斤Γ觀察到從上層開始在〇.4公尺 為在l 上面覆蓋墊子等保溫措施,而認 也爿b夠維持溫度。彳日是 的有效率的前置處理的觀㈣4^從進仃焚化灰 觀點末看’在輯積高度設定為0.8 13 201237331 l 公尺以上。 境氣體的溫度化灰的堆積高度之外,根據環 水性的Μ,、,f㈣物b灰上面覆蓋具有絕熱性及透 理槽的底壁與二壁度降=。或者’使前置處 低。 ,、備有絕熱性,以抑制焚化灰的溫度降 的能=低===:持管理的加熱器等所花費 iMt Γ X制^知的各種材料作為底壁或彳賴具備有絕 熱,絕熱材料的材質以及絕熱材料 有限定。 為了維持上述焚化灰的溫度為20<t以上且60。〇以 下’依據環境氣體的溫度’更可以從前置處理槽的底壁或 侧壁加熱焚化灰,以抑制焚化灰的溫度降低。 如此,藉由將焚化灰的自己發熱保持在焚化灰層内, 在前置處理期間中的焚化灰溫度保持在環境 的所希望的溫度範圍内,亦即能夠維持在2(rc以H6(rc 以下’而能夠有效果的進行焚化灰的前置處理。 對堆積為規定層厚的焚化灰空開規定間隔而間歇性 地實施灑水,於間歇性地灑水時,對焚化灰一併實施通氣。 亦即’對分散為規定密度、規定層厚的焚化灰广進彳^規定 量的人工灑水及規定流速的通氣處理。 201237331 在此情況下,通過對抗於向下方通過焚化灰層中的壤 水的滲水方向來進行通氣。所灑的水的通過焚化灰層的渗 水速度在灑·水開始後的經時變化變小,因此溶出物向渗出 水中的溶出量的經時變化變少,從而確保穩定的溶出狀 況’在謀求可確保可靠性高的前置處理品質上是有利的。 實施例 本方式的實施例如圖5及圖6所示。前置處理設備1〇 包括前置處理槽12、灑水裝置μ、通氣裝置16、滲出水 集水裝置18、控制裝置20。 (前置處理槽12) 前置處理槽12為鋼板儲存槽。 鋼板儲存槽具有完全由鋼板構成的軀體,軀體是由底 壁與從底壁的周圍立起的側壁所構成。在鋼板儲存槽内部 形成^寬4.7公尺X深7公尺X高4公尺大小的收容空間: 前置處理槽12的底壁上以隔開1G公分的間隔鋪設寬 8〇公分、厚15公分的胺曱酸乙酯泡沫的絕埶材22,以9〇 =的間隔配置寬Π)公分_水魏氣溝。在構成通氣裝 ϋ吉及,水集水裝518兩者的集錢通中,使用 I端的^孔官24。裝人碎石直到集水兼通氣溝的 :基以谋求保護有孔管24,並且在底壁上設置由碎石與 集水兼通氧溝構成的通水_通氣層。 (焚化灰投入至前置處理槽12) 1用挖土機(baekhGe)將焚化灰26搬 槽12並進行分散。 15 1 1201237331 、邊從焚化灰26的表面開始,於0 4公尺、〇 8公尺、 的位置配置溫錢顚38(熱電如…邊搬入焚 P二沾I搬入州時結束搬入。此時從通水·通氣層的上面 =的焚化灰26料料1S公尺,填絲 立方公分。 儿丨 (壤水襄置14、滲出水集水裝置18) 灑水是利用水龍頭來分支給水。麗水是在前置處理槽 =的中央部設定4.7公尺χ4 7公尺的灑水區域於灑水^ ^四個角落設置四域水器28〇1水喷嘴),灑水器28 的;麗士半經約5公尺、麗水範圍(角度)90度。 灑f量是以一日的灑水次數(灑水間隔)與每一次灑水 水量的設定來計算。以定時控制來進行灑水間隔,在 二ί時間進行電動閥3〇(電磁閥)的開放動作而開始灑水; 水開始之後當流量計32的流量累積值的灑水量到達 設定的灑水量時’進行電動闕3〇的關閉動作而結束灑水。 渗出水經由前置處理槽12底部的集水兼通氣溝而集 中到集水量器36。如圖7所示,為了保持從焚化灰下部的 通氣’集水量器當作水密封結構。利用滲出水泵4〇將滲出 水傳送至滲出水儲存槽。 (通氣裝置16) 從設置在前置處理槽12外部的送風機34(給氣風扇) 將外界氣體供給至設置在前置處理槽12底部的構成集水 兼通氣溝的有孔管24中,以進行焚化灰層的通氣。 灑水裝置14、滲出水集水裝置18、通氣裝置16的各 201237331 ^ f / \J /^ιί ,動作是利用控制裝置20來控制。溫度_濕度 接至控制裝置20。 2連 在實施例中,對抗於向下方通過焚化灰層中 ^水方向來進行通氣。於上賴水處理時,料進· 氣處理,與不進行該通氣處理的情形相比,所灑的水的= 過焚化灰層的渗水速度錢糊始後的_變化變小。^ 亦即’焚化灰層中的重金屬、有機物等溶出物向珠 7中的溶出量會受到滲水速度的較大影響,但於灑水^ 置處理中,如上所述滲水速度的經時變化變小,因此溶: 物向渗出7JC中的溶出量的經時變化變少,從而確保^ Ϊ結果’因滲水速度的經時狀況所引起物曼 史化又到抑制,從而使溶出量的經時變動穩定化,豆纟士 可確保可靠性高的前置處理品質。 八、、、° 又,當不併用通氣處理來進行灑水時,無論如何焚化 火^中亦會形成有料渗水的通道,所灑的水可沿著該通 ^流動。然而,當對抗於渗水方向而自下方進行通氣處理 可於焚化灰層中均勻地進行渗水,從而可抑制渗水地 方的不均—性。 / 該通氣處理與灑水一並進行為佳。或者,亦可一前一 後來進行灑水處理與通氣處理。於該情形時,可先進行灑 处理亦可先進行通氣處理,但必須使兩處理間不留太 間間隔。較好的是,―前—後地於前—個處理結束 後接著進行下一個處理即可。 (前置處理設備的運轉條件) 17 201237331201237331 L The part-handling device that is reused is not limited to the fixed type of container or the pre-processing device. Before the above, the incineration ash is put into the front place to search for the groove, and the density is set and the thickness is set. The 9 device' can also adopt various configurations that can be learned. After the input, the shovel or the like is used, and when the incinerated ash is sprinkled, the temperature of at least 1 ash from the pretreatment is 20 ° C or more and 6 〇〇 c or less. Between the first 10 洒 of the sprinkling treatment and the aeration treatment, the above-mentioned incineration is maintained in the front place. 'Because the simultaneous dissolution promotion and insolubilization are carried out, I will record the ifc water f in the early stage, and the water will be exuded in the Koga. It is necessary to set the temperature at which the dissolution is promoted and the temperature at which the heterolysis is promoted in another range. The temperature setting is difficult, but the range of the set temperature of the pre-processing temperature is set according to the lower order. (1) Setting of lower limit value In the test result (Fig. 2 and Fig. 3) of the conventional method (when the pretreatment temperature is affected by the ambient gas temperature), it is 7. Between 〇 and 29 °C, it is found that the EC value and the TOC concentration tend to decrease when the pretreatment temperature is high, and the EC value and the TOC concentration tend to decrease. Therefore, it is considered to be 7 ° C to 29 ° C. The temperature at which the dissolution promotion and the insolubilization effect are changed is set within a range that does not affect the concentration of the effluent water, and the influence of the temperature on the oozing water concentration and the temperature of the incineration ash are evaluated, and the lower limit of the pretreatment temperature is reviewed. . Method: 50 g (wet weight) of incineration ash was sealed and stored in 100 〇 ml of polyethylene 201237331: placed in a temperature of 5C and Saki. After standing for 4 days, add 5 ml of distilled water for 6 hours, and the EC value and the concentration of TOC, Ca, and sfa for the supernatant (eluent) are as shown in Fig. 4(A)~ 4(D) is shown. Analysis of the results: Temperature range for suppressing elution: From the range of j 5 ° C to 40 ° C, it was confirmed that the EC value and the Ca concentration P decreased as the treatment temperature was increased. Furthermore, from the point of view of the conventional method, in the range of 7 ° C to 29 ° C, the decrease ratio of the value of the bleed water increases as the pretreatment temperature increases, and it is considered that the value of ca is equal to the Ec value. The affected salts are difficult to dissolve. From these results, it is expected that the effect of suppressing the elution from the ash can be expected by increasing and maintaining the pretreatment temperature within the range of 〜4 〇. < Temperature range for promoting elution in a range in which the concentration of bleed water is not affected / 1 In the range of 5 ° C to 40 ° C, it was confirmed that the concentration of TOC and the concentration of Na increased with the pretreatment temperature. rise. Na is a salt which affects the ec value, and the ratio of the decrease in the EC value of the exuded water increases as the pretreatment temperature increases in the range of 7 ° C to 29 ° C as shown by the conventional method. It is considered that the promotion of the elution of Na in this case is to promote the elution in a range in which the concentration of the bleed water is not affected. Further, for TOC, elution at 20 ° C to 40 ° C is promoted at 20 ° C to 40 ° C compared with 5 ° C. From the conventional method shown in the range of 7 ° C ~ 29 ° C with the pretreatment temperature to increase the TOC concentration of the effluent water decreased 11 201237331 / / V / / ratio will be added, from the point of view, and In the case of the dissolution of T〇c in this case, the concentration of TQC in the exuded water is not promoted within the range of the swell of the swell, and is considered to be 20 for the TOC. 〇 is the lower limit temperature at which the concentration of T〇C in the effluent water is not affected. From the above results, the lower limit of the temperature at which the elution is promoted without increasing the concentration of the bleed water and promoting the insolubilization is set to 20. Hey. (2) Setting of the upper limit value From the results of the dissolution test shown in Fig. 4 (A) to Fig. 4 (D), it is considered that the dissolution of a part of the salt is suppressed and the T is promoted as the temperature is raised. The effect of dissolution of c' is considered to be at 6 〇. In the above-mentioned setting range, it is considered that it is not the actual setting '60 ° C as the upper limit', but it is considered that the self-heating phenomenon of incineration ash in the pre-treatment period (including the insulation measures) In the case of the case, it is also appropriate to set the pre-processing temperature by this process. In this case, it is irresistible that the incineration ash has a temperature exceeding 60 °C. From the results of (1) above, in order to maintain the effect of the pretreatment, it is considered that the temperature of the incineration ash in the pretreatment period is lower than 20 ° C. The incineration ash temperature must be maintained above 20 °C by the adiabatic or heating of the pretreatment tank. The above temperature management is performed at least 40 days from the pre-processing, as shown in Fig. 9 and Fig. 10, after 40 days, since the TOC concentration or the EC value is extremely low, the TOC concentration or the EC value is low. Value is advantageous in stability. 12 201237331 However, in the case of heating, from the point of view of efficient energy use, it is irresistible to make the heating period less than four. For example, the heating period may be set from the beginning to at least one day. As a basis for the effect, as shown in Fig. 2 and Fig. 3 (there is no point in the figure because no oozing water is obtained), it is known that the value of the EC value and the TOC concentration during the summer season when the temperature is high decreases during the initial day. Big value. On the other hand, compared with the case where the temperature is low after 10 days, the magnitude of the decrease in the value of the EC value and the concentration of T〇c = the size does not change. From these results, it is important that the initial temperature management, that is, the temperature management at least 10 days from the pre-treatment, is the effect of warming at the initial stage. ~ On the other hand, heat is generated from incineration ash at the beginning of landfill. Keeping the heat generated during the accumulation of the ignited ash in the pretreatment tank, and using this heat to reduce the energy consumed by the only managed heating material used for temperature conditions depending on the ambient gas temperature It is advantageous to maintain the heat generated from the incineration ash at the initial stage of the accumulation in the front-mounted state, and the accumulation of incineration ash from the bottom surface of the pretreatment tank is G.8 or more. If the stacking height of the incineration ash is (four) meters to favor the cooling from above and maintain the temperature of the incineration ash, the heat generated by the ash in the treatment tank is kept in the front::: From the upper level, the insulation is covered by a mat. 4 meters to cover the mat on the l, and it is enough to maintain the temperature. The next day is the view of efficient pre-processing (4) 4^ From the point of view of the incineration ash at the end of the view, the height of the accumulation is set to 0.8 13 201237331 l m or more. In addition to the stacking height of the temperature ash of the ambient gas, according to the enthalpy of the aqueous hydration, the f (four) b ash is covered with a bottom wall having a heat insulating and a permeable groove and a two wall degree drop =. Or 'Let the front position low. , with heat insulation to suppress the temperature drop of incineration ash = low ===: iMt 持 for the management of the heater, etc. 各种 X know the various materials as the bottom wall or rely on the insulation, insulation The material of the material and the heat insulating material are limited. In order to maintain the temperature of the above-mentioned incineration ash, it is 20 < t or more and 60. The incineration ash can be heated from the bottom wall or side wall of the pretreatment tank to reduce the temperature of the incineration ash, depending on the temperature of the ambient gas. Thus, by keeping the self-heating of the incineration ash in the incineration ash layer, the temperature of the incineration ash during the pre-treatment period is maintained within the desired temperature range of the environment, that is, it can be maintained at 2 (rc is H6 (rc) In the following, the pre-treatment of the incineration ash can be carried out in an effective manner. The incineration ash deposited at a predetermined layer thickness is intermittently sprinkled at a predetermined interval, and the incineration ash is simultaneously applied when the water is intermittently sprinkled. Ventilation. That is, the artificial sprinkling of a specified amount of incineration ash dispersed in a predetermined density and a specified layer thickness, and a prescribed flow rate of aeration. 201237331 In this case, by opposing the incineration of the ash layer The water seepage direction of the loam water is ventilated. The water seepage speed of the sprinkled water passing through the incineration ash layer becomes smaller over time after the start of the sprinkling water, so the amount of elution of the eluted material into the effluent water changes with time. It is advantageous to ensure a stable elution condition, and it is advantageous in order to ensure high reliability of pre-processing quality. Embodiments of the present embodiment are as shown in Figs. 5 and 6. The pre-processing apparatus 1 includes The pretreatment tank 12, the sprinkling device μ, the aeration device 16, the seepage water collecting device 18, and the control device 20. (Pretreatment tank 12) The pretreatment tank 12 is a steel sheet storage tank. The steel plate storage tank has a steel plate completely The body is formed by a bottom wall and a side wall rising from the periphery of the bottom wall. A storage space of 4.7 meters in width, 7 meters in depth, and 4 meters in height is formed inside the steel plate storage tank: On the bottom wall of the treatment tank 12, a crucible 22 of a mixture of 8 cm cm and 15 cm thick of an amine phthalate foam was placed at intervals of 1 G cm, and the width of the crucible was arranged at intervals of 9 〇. In the Jiqiantong, which constitutes both the ventilating device and the water collecting device 518, the I-hole of the I-port is used. The gravel is installed until the water collecting and venting groove: the base is used to protect the hole. The pipe 24 is provided with a water-passing layer composed of gravel and water collecting and oxygen-passing ditch on the bottom wall. (Incineration ash is put into the pre-treatment tank 12) 1 Incineration ash is used by an excavator (baekhGe) The tank 12 is moved and dispersed. 15 1 1201237331, starting from the surface of the incineration ash 26, at a position of 0 4 meters and 8 meters. When the thermoelectric power is used, it is moved into the incineration, and when it is moved into the state, it is finished. At this time, from the top of the water and ventilation layer, the incineration ash 26 material is 1 S meter, and the wire is cubic centimeters. (Land water setting device 14 and seepage water collecting device 18) Watering is to use a faucet to branch water. Lishui is a sprinkling area of 4.7 meters χ 4 7 meters in the center of the front treatment tank = sprinkling water ^ ^ Four corners set four waters 28 〇 1 water nozzle), sprinkler 28; Lishi halfway about 5 meters, Lishui range (angle) 90 degrees. Sprinkle f is the number of sprinkles per day (sprinkling interval) and the setting of each sprinkling water amount. The sprinkling interval is controlled by the timing control, and the electric valve 3〇 (solenoid valve) is opened and the water is sprinkled at the time of two hours; When the water spray amount of the flow rate cumulative value of the flow meter 32 reaches the set water spray amount, the electric motor 阙 3 〇 is turned off to end the water sprinkling. The oozing water is collected in the water collecting gauge 36 via the water collecting and venting grooves at the bottom of the pretreatment tank 12. As shown in Fig. 7, in order to maintain the venting 'collector from the incineration ash, a water seal structure is used. The oozing water is transferred to the oozing water storage tank by means of an oozing water pump 4 。. (Ventilation device 16) The outside air is supplied from the blower 34 (air supply fan) provided outside the pretreatment tank 12 to the perforated pipe 24 constituting the water collecting and venting groove provided at the bottom of the pretreatment tank 12, Ventilation of the incineration ash layer. Each of the sprinkler device 14, the oozing water collecting device 18, and the venting device 16 is controlled by the control device 20. The temperature_humidity is connected to the control unit 20. 2 In the examples, ventilation was carried out against the direction of water in the incineration ash layer downward. In the case of the upper water treatment, the feed gas treatment is compared with the case where the air treatment is not performed, and the water spray rate of the over-incinerated ash layer becomes smaller than the change after the start of the paste. ^ That is, the amount of dissolved metal, organic matter, etc. dissolved in the incineration ash layer is greatly affected by the water seepage rate. However, in the sprinkling treatment, the water permeable rate changes over time as described above. It is small, so it dissolves: the amount of dissolution of the substance in the exuded 7JC decreases with time, thereby ensuring that the result of the dissolution due to the time-lapse of the water seepage rate is inhibited, so that the amount of dissolution is Stabilization of the time, the bean gentleman can ensure the reliability of the pre-processing quality. VIII, 、, ° 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 However, when the aeration treatment is performed from below against the direction of water seepage, water permeation can be uniformly performed in the incinerated ash layer, thereby suppressing the unevenness of the water seepage. / This ventilation treatment is preferably carried out together with watering. Alternatively, it can be sprayed and ventilated one after the other. In this case, the sprinkling treatment may be performed first or the aeration treatment may be performed first, but it is necessary to leave no space between the two treatments. Preferably, the "pre-post-after" processing is performed after the end of the previous processing. (Operation conditions of pre-processing equipment) 17 201237331

X (灑水條件) 灑水量1.2立方公尺/日 渗出水量0.96立方公尺/日 滲出水量/灑水量80% 經過日數50日時的液固比〇.6 (通氣條件) 通氣線速度大致上固定為1.8公釐/秒 (效果) (1)焚化灰溫度的維持 圖8繪示前置處理期間中焚化灰溫度與外界氣體溫度 的經時變化。 & (因自己發熱現象造成的焚化灰溫度的維持) 從前置處理開始後維持在較外界氣體溫度高的狀 態,發現了因自己發熱現象造成焚化灰溫度上升。此狀態 在前置處理開始後10日前後達到峰值之後降低,直到前置 處理結束時都維持在在較外界氣體溫度高的狀態。在習知 方法所示在深度為0.3公尺的焚化灰溫度的經時變化,即 使在夏季期間於前處裡開始後,在早期就顯示出與外界氣 體溫度大致相同的傾向,因此認為藉由增加焚化灰的填埋 深度’可以達成焚化灰的溫度維持的效果。 (上層焚化灰的溫度變化) 從上層(深度0.4公尺)與中層(深度〇 8公尺)的焚化灰 溫度的經時變化來看,上層幾乎沒有習知方法所示在填埋 洙度為0.3公尺的溫度降低。上層的焚化灰温度與中層的 18 201237331 ^//u /pif 焚化灰温度比較,發現上層的焚化灰温度有較早溫度降低 的傾向。這是因為藉由增加焚化灰的填埋深度,來自中層 的移動的熱抑制了上層的焚化灰温度的降低,但是深度0 4 公尺程度會受到外界氣體的影響。因此,對於至少利用自 己發熱現象維持焚化灰的溫度而言,認為希望有0.8公尺 以上的填埋深度。 (下層焚化灰的溫度變化) 從下層(深度1.4公尺)與上層(深度〇.4公尺)的焚化灰 1度的經時變化來看,至前置處理開始後曰前後儘管在 底面以胺曱酸乙酯泡沫進行絕熱,發現了下層的焚化灰温 度有低於上層的焚化灰温度的期間,這認為是因從底面供 給氣體所造成的冷卻影響。至前置處理開始後1〇日前後顯 不出上升的傾向,這認為是因自己發熱現象產生的熱大於 因供給氣體所造成的冷卻。然後,在前置處理開始後15 曰前後,下層的焚化灰温度和上層的焚化灰温度反轉;在 30日前後以後’下層的焚化灰温度和中層(深度〇 8公尺) 的焚化灰温度反轉,因此可以判斷底部的絕熱對於維持_ 管理焚化灰温度是有效的。 (前置處理效果) (給予滲出水EC值的效果) 圖9繪示前置處理期間中滲出水的EC值(導電度)的 經時變化。前置處理開始後30日前後,]£(:值為低於丨2西 門子/公尺(S/m) ; 40日,EC值為低於1.0西門子/公尺 (S/m)。此結果與習知方法所示的前置處理條件與填埋深度 19 201237331 (習知方法:深0.3公尺;實施例:深〗8公尺)、初期EC 值的峰值(習知方法:約3西門子/公尺(s/m);實施例:約 4西門子/公尺(S/m))不同,但是顯示出與習知方法的夏季 期間所示的滲出水的EC值(導電度)的經時變化大致相同 的滲出水的EC值(導電度)的經時變化,因此認為實施例所 示的填埋深度與前置處理條件可以得到與填埋深度為〇3 公尺時同樣的效果。 (給予滲出水TOC濃度的效果) 圖10是前置處理期間中滲出水的TOC(總有機碳)濃 度的經時變化圖。前置處理開始後30日前後,T0C濃度 為低於500 mg/Ι ; 40日,T0C濃度為低於25〇 mg/1。如上 所述,此結果與習知方法所示的前置處理條件與填埋深度 (習知方法:深G,3公尺;實施例:深丨8公尺)、初期T〇c 遭度的峰值(f知方法:約8G0mg/l;實施例:約2GG〇mg/l) 不同,但是顯示出與習知方法的夏季細所福滲出水的 T〇C濃度的經時變化大致相同的滲出水的TOC濃度的經 時變化,確認了前置處理開始後50日可以降低到初期T〇c 濃度的峰值的1/10的程度。 六刖f處理結束後的判斷只要是採用基於最終處理場等X (sprinkling condition) Sprinkling water 1.2 m ^ 3 / day seepage water volume 0.96 m ^ 3 / day seepage water volume / sprinkling water amount 80% The liquid-solid ratio 经过.6 (ventilation condition) after 50 days of the day The upper fixing is 1.8 mm/sec (effect) (1) Maintenance of incineration ash temperature Fig. 8 shows the temporal change of the incineration ash temperature and the outside air temperature during the pretreatment process. & (Maintenance of incineration ash temperature due to self-heating) Maintained at a higher temperature than the outside air from the start of pretreatment, and found that the temperature of the incineration ash increased due to self-heating. This state is lowered after reaching the peak value 10 days after the start of the pre-processing, and is maintained at a state higher than the outside air temperature until the end of the pre-processing. The change in the temperature of the incineration ash at a depth of 0.3 m as shown in the conventional method shows a tendency to be substantially the same as the temperature of the outside air at an early stage even after the start in the summer. Increasing the landfill depth of incineration ash can achieve the effect of maintaining the temperature of the incineration ash. (temperature change of the upper incineration ash) From the time-dependent change of the incineration ash temperature of the upper layer (0.4 m depth) and the middle layer (depth 8 m), the upper layer has almost no conventional method shown in the landfill temperature. The temperature of 0.3 meters is lowered. The temperature of the incineration ash in the upper layer is compared with the temperature of the incineration ash in the middle layer. It is found that the temperature of the incineration ash in the upper layer tends to decrease at an earlier temperature. This is because by increasing the landfill depth of the incineration ash, the heat from the movement of the middle layer suppresses the lowering of the incineration ash temperature of the upper layer, but the depth of 0 4 meters is affected by the external gas. Therefore, it is considered that it is desirable to have a landfill depth of 0.8 m or more for the temperature at which the incineration ash is maintained by at least the self-heating phenomenon. (temperature change of incineration ash in the lower layer) From the lower layer (1.4 m depth) and the upper layer (depth 〇.4 m), the change of the incineration ash is 1 degree, until the front and the front of the pretreatment, although the bottom surface is The amidoxime foam was adiabatic, and it was found that the temperature of the incineration ash of the lower layer was lower than the temperature of the incineration ash of the upper layer, which was considered to be due to the cooling effect caused by the supply of gas from the bottom surface. There is no tendency to rise until 1 day after the start of the pre-treatment, which is considered to be because the heat generated by the self-heating phenomenon is greater than the cooling caused by the supply of gas. Then, before and after the pretreatment starts, the temperature of the incineration ash in the lower layer and the temperature of the incineration ash in the upper layer are reversed; after 30 days, the temperature of the incineration ash in the lower layer and the temperature of the incineration ash in the middle layer (the depth is 8 meters) Reverse, so it can be judged that the bottom insulation is effective for maintaining _ management of incineration ash temperature. (Pre-treatment effect) (Effect of giving EC value of exuded water) Fig. 9 shows the temporal change of the EC value (conductivity) of the oozing water during the pre-treatment period. Around 30 days after the start of pre-processing, £(: value is lower than 丨2 Siemens/meter (S/m); on the 40th, EC value is lower than 1.0 Siemens/meter (S/m). Pretreatment conditions and landfill depths as shown in the conventional method 19 201237331 (known method: depth 0.3 m; example: deep 8 m), peak value of initial EC value (known method: about 3 Siemens / metre (s / m); Example: about 4 Siemens / meter (S / m)), but showing the EC value (conductivity) of the oozing water shown in the summer period of the conventional method The EC value (conductivity) of the oozing water having substantially the same change with time is changed. Therefore, it is considered that the landfill depth and the pretreatment conditions shown in the examples can obtain the same effects as when the landfill depth is 〇3 m. (Effect of giving TOC concentration of oozing water) Fig. 10 is a graph showing changes with time of TOC (total organic carbon) concentration of oozing water during pretreatment. The concentration of TOC is less than 500 mg before and after 30 days after the start of pretreatment. Ι ; On the 40th, the T0C concentration is below 25〇mg/1. As mentioned above, this result is compared with the pretreatment conditions and landfill depth shown in the conventional method. Method: deep G, 3 meters; example: squat 8 meters), peak value of initial T〇c (f Know method: about 8G0mg/l; Example: about 2GG〇mg/l) Different, but It shows that the TOC concentration of the oozing water which is substantially the same as the time-dependent change of the T〇C concentration of the condensed water in the summer of the conventional method is confirmed to be reduced to the initial T 50 50 days after the start of the pretreatment. c The degree of the peak of the concentration is 1/10. The judgment after the completion of the processing of the six 刖f is based on the final processing field, etc.

Sill!收容標準以及考慮到因滲出水造成的環境影響 即可。例如,在收容標準有焚化灰的溶出值的 月中,採用在焚化灰滿足收容標準的溶出值時表示滲出 :日的有,物或鹽類的濃度的指標作為判斷的指標即可。 但疋’在焚化灰滿足收容鮮的情況下或者無法決定收容 20 20123733纟 之前的收容標準情況下,考慮到收容之前因滲出水造成的 環土兄影響,作爲追加標準’採用表示滲出水中的有機物或 鹽類的濃度的指標作為判斷的指標即可。例如作為表示承 出水中的總有機碳濃度(T0C)的指標,以滲出水中的^ 有機碳濃度(TOC)等為指標來進行判斷即可。例如,於 滲出水的TOC成A 100 mg/1的時間點,判斷為前置處理 元成即可。為達到該判斷基準,雖然由於焚化灰的性質等 的影響而多少有波動,但藉由實驗而確認出大概40天至 50天的期間完成前置處理。當然,作為表示其他鹽類的濃 度的指標’亦可使用導電度(Electricalconductance,Ec) 等作為判斷的指標。與不使用T0C作為指標的情形相比, 使用TOC作為判斷彳旨標的有利方面在於直接表示指標物 質的數值。附帶而言’於使用其他的EC等作為判斷指標 時,例如’採用1.0西門子/公尺(s/m)的數值作為基準即 據上述的前置處理,可於較短期間降低焚化灰的 曰/度、Ec值等,而且於削減灑水處理時所使用的水 篁的方面亦有利。 特別疋如圖8所示,在外界氣體溫度於〜28。〇之 的地區、季節中,由於不需要於從底壁或侧壁加熱 理择2,而將在堆積初期從焚化灰產生的熱保持在前置處 拄二古认因l此不需要使用加熱器就可以將焚化灰的溫度維 材/二;夕界氣體溫度的所希望的溫度範圍内,在企圖使 是化灰的前置處理所花費的能源的低減上是有利的。 21Sill! Contains standards and takes into account the environmental impact of water seepage. For example, when the incineration ash meets the dissolution value of the containment standard in the month in which the standard of the incineration ash is contained, the exudation is indicated as the index of the concentration of the substance or the salt. However, in the case where the incineration ash satisfies the containment condition or the accommodation standard before the reception of 20 20123733 is not determined, the organic matter of the exudate water is used as an additional standard in consideration of the influence of the ring-and-soil brother caused by the seepage water before the containment. Or the index of the concentration of the salt can be used as an indicator of the judgment. For example, it is sufficient to use an organic carbon concentration (TOC) in the effluent as an index to indicate the total organic carbon concentration (T0C) in the water to be taken out. For example, when the TOC of the oozing water is A 100 mg/1, it is judged that the pretreatment unit is formed. In order to achieve this criterion, although there is some fluctuation due to the influence of the nature of the incineration ash, it is confirmed by experiments that the pretreatment is completed in a period of approximately 40 days to 50 days. Of course, as an index indicating the concentration of other salts, an electrical conductivity (Ec) or the like can be used as an index for determination. The advantage of using TOC as a criterion for determining the target is to directly represent the value of the indicator substance compared to the case where T0C is not used as an indicator. Incidentally, when using other ECs or the like as a judgment index, for example, 'the value of 1.0 Siemens/meter (s/m) is used as a reference, and according to the above pretreatment, the ash of the incineration ash can be reduced in a short period of time. /degree, Ec value, etc., and it is also advantageous in terms of reducing the amount of water used in the sprinkling treatment. In particular, as shown in Figure 8, the ambient gas temperature is ~28. In the area and season of the raft, since it is not necessary to heat the selection 2 from the bottom wall or the side wall, the heat generated from the incineration ash at the initial stage of accumulation is kept at the front position. The temperature of the incineration ash can be increased in the desired temperature range of the incineration ash; it is advantageous to attempt to reduce the energy required for the pretreatment of the ash. twenty one

201237331 • L 故如此完成前置處理的已前置處理的焚化灰被投入到 最終處^的儲存構造_等並以規定要健行填埋,或 者作為f材、填均料、回龍料等純再利用。 雖然本發明已以實施例揭露如上,然其並非用以限定 本發明,任何所屬技術領域中具有通常知識者,在不脫離 本發明之精神和範圍内,當可作些許之更動與潤飾,故本 發明之保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖UA)、圖l(B)、圖l(C)分別表示在夏季期間、秋季 期間及冬季期_前置處賴驗顧巾魏緒(氣溫)及 焚化灰溫度的經時變化圖。 圖2是表示滲出水的EC值(導電度)的圖。 圖3是表示滲出水所含有的T〇c(總有機碳)濃度的 圖。 圖4(A)、圖4(B)、圖4(C)、圖4(D)是分別表示EC值 及TOC、Ca、Na的濃度分析的結果圖。 圖5是前置處理裝置的正面圖。 圖6是實施例的前置處理裝置的平面圖。 圖7是實施例使用的集水量器的說明圖。 圖8是實施例的前置處理期間中焚化灰溫度與外界氣 體溫度的經時變化圖。 圖9是前置處理期間中滲出水的EC值(導電度)的經 時變化圖。 * 圖10是前置處理期間中滲出水的T〇c(總有機碳)濃 度的經時變化圖。 22 201237331201237331 • L The pre-treated incineration ash that has been pre-processed in this way is put into the final storage structure _ and so on, and is required to be safely landfilled, or as pure f material, filled material, recycled material, etc. Reuse. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. [Simple diagram of the diagram] Figure UA), Figure l (B), Figure l (C) respectively indicate during the summer, autumn and winter periods _ the front of the inspection of the towel Wei Xu (temperature) and incineration ash temperature Change the graph over time. Fig. 2 is a view showing an EC value (conductivity) of oozing water. Fig. 3 is a graph showing the concentration of T〇c (total organic carbon) contained in the oozing water. 4(A), 4(B), 4(C), and 4(D) are graphs showing the results of concentration analysis of EC values and TOC, Ca, and Na, respectively. Figure 5 is a front elevational view of the pre-processing device. Figure 6 is a plan view of the pre-processing apparatus of the embodiment. Fig. 7 is an explanatory view of a water collecting gauge used in the embodiment. Fig. 8 is a graph showing changes with time of the incineration ash temperature and the outside air temperature during the pretreatment process of the embodiment. Fig. 9 is a graph showing the temporal change of the EC value (conductivity) of the oozing water during the pretreatment process. * Fig. 10 is a graph showing the change with time of T〇c (total organic carbon) concentration of water oozing during the pretreatment process. 22 201237331

I I \J § X 【主要元件符號說明】 10 :前置處理設備 12 :前置處理槽 14 :灑水裝置 16 :通氣裝置 18 :渗出水集水裝置 20 :控制裝置 22 :絕熱材 24 :有孔管 26 :焚化灰 28 :灑水器 30 :電動閥 32 :流量計 34 :送風機· 36 :集水量器 38 :溫度感測器 40 :滲出水泵 42 :溫度-濕度感測器 23II \J § X [Description of main component symbols] 10 : Pre-processing equipment 12 : Pre-treatment tank 14 : Sprinkler 16 : Ventilation device 18 : Exudation water collection device 20 : Control device 22 : Insulation material 24 : Perforated tube 26: Incineration ash 28: Sprinkler 30: Electric valve 32: Flow meter 34: Blower 36: Water collecting device 38: Temperature sensor 40: Exudation pump 42: Temperature-humidity sensor 23

Claims (1)

201237331 七、申請專利範園: 或者作為骨置處理方法’於將焚化灰填埋之前 對上述焚化灰進行灑材,等加以再利用之前, 徵在於: 尺處理及通氣處理的前置處理,其特 灰的:===日―焚化 方圍第1項所述之焚化灰的前置處理 高度為08公尺以:置處理槽的底面的上述焚化灰的堆積 的熱保持在上述前置處堆積初期從上述焚化灰產生 方^ 專鄉圍帛2項輯之焚化㈣前置處理 水性的2在堆積的上述焚化灰上面覆蓋具有絕熱性及透 、墊子,以抑制上述焚化灰的溫度降低。 4如申請專利範圍第2項所述之焚化灰的前置處理 :、’八中上述前置處理槽具有底壁與侧壁,上述側壁從 t述底壁的周圍立起’使上述底壁或上述侧壁具備有絕熱 性,以抑制上述焚化灰的溫度降低。 , 、5.如巾料纖圍第3項所述之焚化灰的前置處理 方法,其中上述前置處理槽具有底壁與側壁,上述側壁從 上述底壁關圍立起,使上述錢或上述嫩具 性,以抑制上述焚化灰的溫度降低。 、… 6.如申請專利範圍第2項至第5項其中任一項所述之 焚化灰的前置處理方法,其中上述前置處理槽具有底壁與 24 201237331 侧壁,上述侧壁從上述底壁的周圍立起,從上述底壁或上 述側壁加熱上述焚化灰,以抑制上述焚化灰的溫度降低。 7·如申請專利範圍第1項至第5項其中任一項所述之 焚化灰的前置處财法,其巾上職水處理進行從上 置處理槽的上方灑水;以及 、,上,通氣處理進行從上述前置處理槽的底部向上方 流通空氣。 8·如申請專利顧第6項所述之焚化灰的前置處理 方法,其巾上賴水處理崎從上述前置纽槽的上 水;以及 上述通氣處理進行從上述前置處理槽的底部向上方 流通空氣。 9·如申請專利範圍第"至&項其中任一項所述之 焚化灰的前置處理方法,其中從上述前置處理開始至少40 日之間’維持上述焚化灰的溫度為机以上且航以下。 W如中請專利範圍第6項所述之焚化灰的前置處理 方法,其中從上述前置處理開始至少40日之間,維持上述 焚化灰的溫度為20。(3以上且6〇ΐ以下。 /·如申請專利範圍第7項其中任—賴述之焚化灰 的月】置處理方法’其巾從上述前置處理開始至少4〇日之 間’維持上述焚化灰的溫度為耽以上且抓以下。 」2.如申請專利範圍第8項其中任一項所述之焚化灰 的前置處理方法,其中從上述前置處理開始至少40日之 間,維持上述焚化灰的溫度為耽以上且抓以下。 25201237331 VII. Applying for a patent garden: Or as a bone treatment method, before the incineration ash is sprinkled before the incineration ash is buried, and before being reused, the problem is: pretreatment of the rule treatment and ventilation treatment, Specially ash: ===Day-Incineration Square The incineration ash described in item 1 has a pre-treatment height of 08 meters: the heat of the above-mentioned incineration ash placed on the bottom surface of the treatment tank is maintained at the above-mentioned front In the initial stage of the accumulation, the incineration ash is produced by the incineration of the incineration ash. (4) The pretreatment of the water is applied to the above-mentioned incineration ash, and the heat-insulating, permeable, and mating layers are covered to suppress the temperature drop of the incineration ash. (4) The pretreatment of the incineration ash according to item 2 of the patent application scope: "the above-mentioned pre-treatment tank of the eighth part has a bottom wall and a side wall, and the side wall rises from the periphery of the bottom wall of the t" to make the bottom wall Or the side wall is provided with heat insulation to suppress a decrease in the temperature of the incineration ash. The method for pre-processing the incineration ash according to Item 3, wherein the pre-treatment tank has a bottom wall and a side wall, and the side wall is closed from the bottom wall to make the money or The above tenderness is to suppress the temperature drop of the incinerated ash. 6. The method of pre-treatment of incineration ash according to any one of claims 2 to 5, wherein the pretreatment tank has a bottom wall and a side wall of 24 201237331, the side wall from the above The periphery of the bottom wall rises, and the incinerated ash is heated from the bottom wall or the side wall to suppress a decrease in temperature of the incinerated ash. 7. The method of applying the incineration ash according to any one of the items 1 to 5 of the patent application, wherein the towel is treated with water from above the upper treatment tank; and, The aeration process is performed to allow air to flow upward from the bottom of the pretreatment tank. 8. The method for pre-treatment of incineration ash according to claim 6, wherein the towel is treated with water to treat the water from the front tank; and the aeration treatment is performed from the bottom of the pretreatment tank. Circulate air upwards. The method of pre-treatment of incineration ash according to any one of the preceding claims, wherein the temperature of the incineration ash is maintained at least 40 days from the pretreatment. And the following. W. The pretreatment method of incineration ash according to item 6 of the patent application, wherein the temperature of the incineration ash is maintained at 20 between at least 40 days from the pretreatment. (3 or more and 6〇ΐ or less. /·If the patent application scope is the seventh item - the month of the incineration ash of Lai Shu), the treatment method 'the towel is at least 4 days from the above pretreatment" The method of pre-treatment of incineration ash according to any one of the preceding claims, wherein the incineration ash is maintained at least 40 days from the above pretreatment. The temperature of the incineration ash above is above 耽 and the following is captured.
TW100109140A 2011-03-07 2011-03-17 Method of preprocessing incineration ash TWI567344B (en)

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