威立雅水務(wù)技術(shù)在城市污水廠升級改造和污泥處理領(lǐng)域的先進(jìn)技術(shù) Veolias advanced processes in wastewater upgrading and sludge treatment 威立雅水務(wù)技術(shù)亞洲地區(qū)技術(shù)總監(jiān) 陳曉華2010年4月1號 北京,SUMMARY1. Biostyr BAF曝氣生物濾池2. Pyrofluid incineration流化床污泥焚燒,BIOSTYR,1.BAF曝氣生物濾池,Capability of BIOSTYR生物濾池的特點,Up-flow filter, inlet channel from bottom, outlet on top 上向流濾池，底部渠道進(jìn)配水，頂部出水 The specific gravity of media <1 濾料比重小于1 Perforated pipe aeration, saving equipment investment and maintenance costs穿孔管曝氣，節(jié)省設(shè)備投資和維護(hù)費 Nozzle on top of filter, in treated water and easy to maintenance 濾頭在濾池的頂部，與處理后水接觸，易于維護(hù) Backwash by gravity, need not pumps重力反沖洗，無須反沖洗水泵,- Aeration and air backwash share the air blower工藝空氣和反沖洗用氣共用鼓風(fēng)機(jī) - Aeration pipe could be set in the middle or bottom of filter, Nitration and denitration can be done in the same tank. 曝氣管可布置在濾層中部或底部，在同一池中可完成硝化、反硝化功能,Capability of BIOSTYR生物濾池的特點,BIOSTYR 基本設(shè)備,未附著生物膜 without biofilm,附著生物膜with biofilm,BIOSTYR 單元 : 濾料Biostyr media,Biostyr internal structure Biostyr 內(nèi)部結(jié)構(gòu),Biostyr slab 濾板,Biostyr nozzle 濾頭,BIOSTYR: centralized air supply中央供氣系統(tǒng),BIOSTYR main advantages濾池工藝的主要優(yōu)點,- Advanced technology, reliable operation, very suitable for upgrading 工藝技術(shù)先進(jìn)成熟、運行可靠、非常適合水廠升級改造； - Low total investment and operating costs, power consumption of aeration can reduce 2030； 總投資省，運行費用低，曝氣能耗低2030； - Low amount of works and costs, short construction period 土建工程量少，工程費用低，工期短 - Less occupation of land, low land-use and substruction fee 占地面積少，征地費和地基處理費用低； - Steady operation in the condition of low temperature and fluctuate load 在低溫寒冷氣候和負(fù)荷變化的條件下運行穩(wěn)定；,BIOSTYR main advantages濾池工藝的主要優(yōu)點,- High automation 自動化程度高 - Simultaneous Filtration when removing C and N pollutant 去除含碳和含氮污染物的同時可以進(jìn)行過濾 - Module structure, easy to rebuild and expansion 模塊化結(jié)構(gòu)，易于改建和擴(kuò)建 - Outlet water can meet reuse standard, reduce future investment 出水水質(zhì)可達(dá)到回用水標(biāo)準(zhǔn)，節(jié)省未來投資 - Plant can be covered by handsome building, without any noise, odor and vision pollution 廠區(qū)可覆蓋，建筑美觀適用，無噪聲、臭氣和視覺污染,New plant & upgrading Case studies 新廠及升級改造應(yīng)用案例,Multiflosettling沉淀池，Biostyr, 三級Tertiary Actiflo沉淀池，UV，Alizair odor treatment,設(shè)計流量Flow：50,000m3/d 6個同時硝化反硝化處理單元，每個單元面積為113 m2 2 各后置反硝化單元，每個單元面積為84m2 6 Simultaneous N-DN, 6x113 m2, 2 PDN, 2x84 m2 可保證的最終水質(zhì) Outlet treated water： COD：50 mg/l BOD5：10 mg/l SS：10 mg/l NNH4：5 mg/l TN: 15mg/l TP：0.5 mg/l,案例一Case I：BIOSTYR 曝氣生物濾池- 深度處理業(yè)績:深圳西麗污水處理廠Biostyr application in Shenzhen Xili WWTP,深圳西麗 Shenzhen Xili,設(shè)計水質(zhì)和水量 Design capacity and concentrations,出水水質(zhì)(A-I), Treated water requirement: class 1-A,Plant presentation of Xili WWTP,Multiflo primary treatment unit,Biostyr treatment unit,Actiflo tertiary treatment unit,Treated water outlet,VWS建議的處理工藝Process proposed,細(xì)隔柵 Screen,Multiflo Primary 高密度沉淀池,Biostyr N/PDN 生物濾池,UV消毒系統(tǒng),出水Outlet,反沖洗臟水池 Backwash water,Actiflo tertiary 高密度沉淀池,Multiflo 高密度沉淀池,案例二Case II：BIOSTYR 曝氣生物濾池 - 深度處理業(yè)績：南京城東污水處理廠 Nanjing Chengdong Tertiary WWTP,設(shè)計處理水量、水質(zhì)及出水要求Inlet/Outlet quality,三級處理系統(tǒng)工藝流程Tertiary treatment process,二級生物處理Secondary treatment,反沖洗廢水backwash water:1600m3,Biostyr N 硝化型曝氣生物濾池 8x173m2 共8格,Biostyr PDN 后置反硝化型曝氣生物濾池 2x129m2 共2格,碳源投加（甲醇）Methanol,70%旁通,案例三Case III：烏魯木齊河?xùn)|污水處理廠中水深度處理建設(shè)項目Urumqi Hedong WWTP upgrading,烏市河?xùn)|污水處理廠中水深度處理建設(shè)項目 Urumqi Hedong WWTP upgrading,設(shè)計進(jìn)出水水質(zhì)為Inlet/outlet,(GB18918-2002) I A 標(biāo)準(zhǔn),進(jìn)出水設(shè)計基礎(chǔ)Basis of design：100,000m3/d,三級處理系統(tǒng)工藝流程Tertiary treatment process,案例Case IV：石家莊橋東三級處理工程Shijiazhuang Qiaodong Tertiary Project,設(shè)計進(jìn)出水水質(zhì)為Inlet/Outlet,進(jìn)出水設(shè)計基礎(chǔ)Basis of design：500,000m3/d,三級處理系統(tǒng)工藝流程Tertiary Treatment Process,2. Pyrofluid incineration 流化床污泥焚燒,PYROMIX Co-incineration 混燒 with MSW. (10 - 25% wet sludge 濕污泥) ,PYROFLUID Incinerationdedicated 專門污泥焚燒 (400 3700 kg DS/h),2.1 - THERMAL OXIDATION 熱氧化處理,ATHOS Wet Air Oxidation濕式氧化, other其他: cement kiln水泥干燥爐,= ABSOLUTE BARREER AGAINST PATHOGEN HAZARD絕對防止病原菌危險,BIOCON Incineration dedicated專門焚燒 ( 100 500 kg DS/h),2.2 The fluidised bed incinerator Pyrofluid 流化床焚燒爐,Fluidizing air, preheated 流態(tài)氣體，預(yù)先加熱,Sludge inlet,To heat exchanger and flue gas treatment 派往熱交換器和廢氣處理,(Heat exchange)熱傳導(dǎo),- the 3 T rule 規(guī)則 - low maintenance 低維修 - easy to operate 容易運行 - long life expected 可以長期運行 - no moving parts 沒有可動部分 - more than 50 references worlwide在全世界有50以上的業(yè)績例子,污泥進(jìn)口,2.3 European Regulation Directive 2000/76/CEE 歐洲指令性規(guī)定2000/76/CEE,( 11% CO2, dry gas basis),2.4 Example of dry treatment 干式處理范例,Fly ash 飛塵,Grinder 磨床,Electro precipitator 電沉淀器,Raw flue gas 廢氣,fan 鼓風(fēng)機(jī),Bag filter 袋式濾器,Cleaned flue gas 洗過廢氣,Active carbon 活性炭,Soda residue 剩余堿 (to disposal or reuse) 再用,stack 煙道,Sodium bicarbonate 碳酸氫鈉,2.5 Example of (half) wet treatment + DeNox （半）濕式處理范例,PYROFLUID + HELIOL,electro-,precipitator 電沉淀器,cooling fluid 冷卻液,air cooler空氣冷卻器,cool down冷卻,heat exchanger熱交換器,anti plume reheater防煙羽回?zé)崞?Fan鼓風(fēng)機(jī),Stack 煙道,Water 水,Blowdown 洗滌廢液,soda,Liquor 堿液體,wet scruber 濕式洗滌器,dry ashes干灰,fluidizing air 流態(tài)化空氣,flue gas/air 廢氣/空氣,heat exchanger熱交換器,hot flue gas熱廢氣,(from freeboard),450-650C,870C,600C,60C,250C,70C,120C,160C,180C,Quench 水洗器,FBF,Wind box,2.6 Dry vs. Wet flue gas treatment 干式/濕式廢氣處理比較,Treatment 處理方式 DRY干式 WET濕式 Advantages優(yōu)勢 Disadvantages 劣勢 INVESTMENT 投資+ + liquid Bleeding 液體排放 No 不需要 to treat 需要處理 Anti-Plume system*防煙羽系統(tǒng) not necessary不需要 Necessary需要 water consumption水消耗量low 低 high 高 Energy recovery 能量回收+ advanced treatment 先進(jìn)處理+ (very low 很低diox, Hg) Disadvantages Advantages Residues 廢物many 多few 少 OPERATION COSTS + + 運行成本,depends on local constraints 要看當(dāng)?shù)匾?guī)定,(* if demanded如要求),2.7 Special case of Chinese Sludge 中國的污泥特性 High water content (75-80%), low dryness 高含水率，低含固率 Low VSS(55%) and low LCV 揮發(fā)性有機(jī)物含量低，熱燃值低,Best solution for the incineration solution: 中國的污泥焚燒方案 - Pre-drying (up to 30-40%) + Incineration 污泥預(yù)干化 (至 30-40%) + 污泥焚燒 - 50-60% energy in the sludge is recovered from incineration, this solution can save 50-60% energy 焚燒可為污泥預(yù)干化提供50-60%能耗，即干化部分可節(jié)約50-60 %能耗,2.7 案例: 深圳市老虎坑污泥半干化-焚燒處理廠 Case study: Shenzhen BaoAn Laohukeng sludge incineration plant,a) 設(shè)計參數(shù) Basis of design,污泥處理量Sludge quantity：800twet脫水污泥/d，160tDS干污泥(DS)/d 污泥性質(zhì)Sludge characteristics 平均含固率 dryness= 20%，range浮動范圍17%25% 設(shè)計熱燃值 LCV = 12,560 kJ/kgDS，range浮動范圍-20%+10% 有機(jī)物含量VSS = 52%，Ash灰分 = 48%,b) 系統(tǒng)設(shè)計方案Layout,76mx63m,Thank you ！ 謝謝大家,