垃圾滲濾液國外應用實例與新技術-Dechin.

1、國外垃圾滲濾液應用實例與新技術電催化+BioDopp生化n處理技術現(xiàn)狀及研究進展n電催化與電驅(qū)動膜簡介n國外應用n國內(nèi)應用及現(xiàn)狀n技術原理nMelon+BioDopp生化技術n國外垃圾滲濾液應用n國內(nèi)技術實施n技術原理n工藝流程設計 垃圾滲濾液是城市生活垃圾衛(wèi)生填埋地產(chǎn)物，處理不當會對環(huán)境造成更嚴重的二次污染。 垃圾滲濾液處理方法一般有物理化學法和生物處理法。資源化低能耗環(huán)境友好型成本高處理效率低存在二次污染生物法好氧生物處理法厭氧生物處理法厭氧-好氧組合工藝土地處理法物理化學法化學沉淀吸附法膜法（納濾、超濾、反滲透等）化學氧化光電催化氧化蒸發(fā)法經(jīng)濟有效國外新型、成熟的生物處理技術及其組合工藝

2、 加拿大IUT垃圾填埋場垃圾滲濾液處理工藝Melon電催化厭氧反應器Melon電催化CH4、CO2浮渣離心漚肥發(fā)電系統(tǒng)電力輸出工藝要點：平衡B/C和控制C/N；Melon 系列電催化技術原理圖： 電催化氧化是處理難降解有機污染物的有效方法。 該技術有別于其他技術的特點在于它的運行和維護成本低，設備簡單易操作，能耗少，處理效果十分優(yōu)秀。最重要的一點它是一個環(huán)境友好型技術。 魚阿For example, traditional models for the formation of oil and natural gas typically involve a catagenic process

3、dominated by thermal cracking reactions that release low-molecular-mass hydrocarbon fragments. These reactions are viewed as unidirectional, kinetically controlled processes that are influenced solely by time, temperature and the composition and structural characteristics of the source kerogen. Howe

4、ver, inorganic compounds such as water and minerals may participate as reactants or catalysts during organic matter maturation. Moreover, many organic alteration products participate in processes that create or destroy sediment porosity and permeability, which has direct implications for petroleum m

5、igration and trapping.Other examples of important organic-inorganic interactions include: aqueous-organic redox reactions, mineral catalysis of petroleum generation, mineral absorption of hydrocarbons, thermochemical sulfate reduction, organic acid formation, catalysis of natural gas formation, wate

6、r and minerals as sources of reactive H and O, and the effect of hydrocarbon oxidation on carbonate systematics.The Hydrogen and Oxygen of Water The hydroxyl radical, OH, is the neutral form of the hydroxide ion (OH). Hydroxyl radicals are highly reactive and consequently short-lived; however, they

7、form an important part of radical chemistry. Most notably hydroxyl radicals are produced from the decomposition of hydro-peroxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. Molecular orbital of the hydroxyl radical with unpaired electron 8Oxidizing Str

8、ength of OHOH oxidizing properties are comparable to Fluorine (F2) the most electronegative element in the periodic table 9Oxidizing agent Half reactionsStandard-State Reduction Potentials, Eo MnO2MnO2(s)+4H+2e- =Mn2+2H2O21.23 Cl2 Cl(g)+2e-=2Cl-1.36 ClO2ClO2+2e-= Cl-+ O21.50 H2O2H2O2+ 2H+2e-=2 H2O1.

9、77 O3 O3+2H+2e-= H2O+ O22.07 OHOH+ H+2 e-= H2O2.80 F2F2(g)+ 2H+2e-=2HF3.06Water Treatment TechnologiesEFFECTS OF OH ON LONG ORGANIC CHAINSThe high oxidizing properties of OH radicals is highly effective in breaking down long organic chains.Most organic waste passing through the system is quickly bro

10、ken up into carbon dioxide, water, and smaller organic and inorganic ions through oxidation. Water Treatment TechnologiesThe hydroxyl (OH) radical is unstable and highly reactive. Required retention time is short, usually less than 2 picosecond.The reactor starts a chain reaction, in which longer an

11、d unstable organic chains are first broken down to smaller ones. The treated water is highly suitable for further biological system.Long chain carbon reductions for most applications range from 30% to 65% in 30 mins May be used to effectively deionizer water in many applications.Disinfects. Oxidizin

12、g effect kills most bacteria and viruses.REACTION TREATMENT CHARACTERISTICS柱狀活性炭填料特制極板Melon特制電極具有耐腐蝕性好、機械強度高、質(zhì)地均勻、可重復使用等優(yōu)點，更重要的是電催化性能高，產(chǎn)生氧化能力極強的OH，加速有機無污染分解。 反應體系在反應過程中包括：氣-液-固多相間的接觸以及界面反應。曝氣起到攪拌溶液的作用，使OH與溶液充分接觸。多相催化技術與電化學體系相結(jié)合三維三相電極體系穩(wěn)定性試驗 System stability data實驗次數(shù)實驗次數(shù)去除率去除率/%CODNH4+-N184.194.2578.

13、381.61073.284.81570.572.92065.271.1反應條件：電壓15V-20V，曝氣0.08m3/h，反應時間120min。n電催化氧化技術作為生化處理的預處理工序。n運行成本主要來自電能的消耗。n垃圾滲濾液中的難降解有機污染物被直接礦化或降解為小分子有機物，而NH4+-N則主要被氧化為氮氣和水。n能夠高效去除COD和NH4+-N是后續(xù)生化的前提條件。Melon電催化氧化正交實驗結(jié)果Electro-catalysis oxidation results of orthogonal test序號序號PH槽電壓槽電壓/V曝氣量曝氣量m3/h極板間極板間距距/cmCOD去除去除率

14、率/%NH3-N去去除率除率/%17.4120.021039.665.427.4140.041217.363.237.4160.061842.961.848.1120.081023.358.958.1140.081026.555.368.1160.081031.261.577.7120.081010.153.287.7140.081018.255.797.7160.081028.558.1世界范圍技術應用日本、沙特、新加坡電驅(qū)動膜與電催化技術簡介 Melon Melon 系列電催化技術是在特殊的催化劑作用下， 將有害廢水中的高濃度鹽類、有機物，含硫化合物，重金屬離子，酸，堿等，通過氧化還原，離

15、子交換分離等反應過程，將污水轉(zhuǎn)變?yōu)楹细袼?。在處理廢水的過程中，可以附帶產(chǎn)生一系列有經(jīng)濟價值的產(chǎn)品，如酸和堿，貴金屬等。該技術充分的展現(xiàn)了污染物的無害化和資源化循環(huán)利用，可以廣泛的應用于處理高濃度含鹽廢水，有機、含油廢水，海水淡化，煙氣凈化，酸、堿渣廢水資源化等各種水處理領域。p 國內(nèi)應用p 預處理p 脫鹽模塊p 脫鹽模塊p 電催化p 澄清池 利用新鮮垃圾滲濾液作為發(fā)酵基質(zhì)進行產(chǎn)甲烷，回收有機廢水中的能源物質(zhì)，具有環(huán)境和能源的雙重效益，也是國外垃圾滲濾液實踐應用和技術研究的重點。 垃圾滲濾液屬于高濃度有機廢水，其中含有大量的有機物，具有發(fā)酵產(chǎn)氫和甲烷基質(zhì)的重要潛力。p國外垃圾滲濾液業(yè)績p電驅(qū)動膜除鹽p 電驅(qū)動力平衡滲透壓、濃度差；p 選擇性離子膜，壽命4-5年；p 同時氧化有機物；p 分離成酸和堿，分別回用。 噸水投資合理 噸水運行能耗2度 資源化p 稀硫酸 10%p 稀鹽酸 10%p 堿液 10%回收利用藥劑類衍生應用藥劑類衍生應用印染廢水絮凝脫色：制革廢水絮凝脫色：藥劑類衍生應用藥劑類衍生應用煤化工、焦化廢水脫焦油：污泥脫水：垃圾滲濾液工藝方案BioDopp處理垃圾滲濾液柏林瓦爾茨湖特市垃圾填埋場興建于1996年，日產(chǎn)生高濃度垃圾滲濾液150m3。其垃圾滲濾液應用BioDopp生化工藝處理，現(xiàn)該污水處理站已經(jīng)連續(xù)運行近15年，