电凝聚除磷及动力学分析

1、电凝聚除磷及动力学分析 张惠灵等电凝聚除磷及动力学分析张惠灵I,李良华I,伊江明2(1武汉科技大学化匸9资源坏境学院，武汉430081；2.武汉钢电股份有限公司，武汉430082)摘 要：采用电旌聚对含磷废水进行处理.得到很好的去除效果.同时对电联聚除磷进彳丁门力力学分析：电凝聚对隣的去除符合一 级反应.磷浓度号电解时间存在如下关系：G =A/+ /I) .K'l'反应速率常数A吋电极反应速度(电流密度关，电流密度越大.反应速率常数*越大；另外电凝聚除磷单位能耗与电流密度符合指数关系：Q= gd 其中k4 是与极板材料有关的系数。关键词：电凝聚；含磷废水：动力学分析中图分类号:

2、X830. 2文献标识码：A文章编号：1(X)3- 6504( 2(X)5) O3-OO57-O31994-2012 China Academic Journal Electronic Publishing House. All rights reserved.电凝聚除磷及动力学分析 张惠灵等1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.电凝聚除磷及动力学分析 张惠灵等CD*I OmA/cm4的去酸军 -OJOmA/cm1的单农能耗r/min£2电解时间与PPR单位

3、能耗关系曲线(恪极板)CD2 OmA/cm'的去隊军 -CD-lOmA/cm1的单位能耗图3电解时何与PPR单位 统耗关系曲线(铁极板)众所周知，排入水体中的氮磷含帚过高将引起水 体的富营养化，破坏水体的生态平衡.从而影响水体的 使用价值。常用的除磷方法卜习冇:物化、生物处理。牛物除磷是通过好氧吸磷、厌氧释磷.故终通过污泥的 排放来去除的生物处理所需的时间较长而4除磷效 果一般不会超过3()%E;化学沉淀法山于除磷效果 高，应用普遍但是山于其使用了人承的沉淀剂成本 较高而口人暈药剂的使用还会対环境造成二次污染。 电凝聚技术.山于装置简单、易操作、不需化学药剂、产 泥虽小、対环境无二次污

4、染等优点受到环保研究人员 的青睞。本文主耍研究电凝聚除磷的仃效性，同时进 行了动力学和能耗分析。1实验装置和方法1. 1试验装宜实验在自制的电凝聚槽(123mm x 123mm x 134mm)中进行，槽中安置6块平行的金属板作为电 解的正负极，极板的尺寸为:102mm x 110 in in x 0. 5 mm,每块极板浸水而枳90cm2,电凝聚装克如图1。直潦电渾/ 5B力損畔/国I电凝聚反应装宜1.2实验方法实验用水是用磷酸二氢钾配制的溶液；实验主要 考察了电凝聚的电解时间、电流密度、原水|)H值、原 水初始浓度、极板材料等冈素対除磷效果的影响。每作者简介:张惠灵(1969- ).女.副

5、教授.硕匕从事水处理相关的教学次实验取水1.5L,极板材料为铝板或铁板。为了保证 测试数据的稳定性.每次实验前用砂纸把极板表而打 幣于净.同时为了降低能耗和活化电极每次实验前在 水样中加入了 1.5呂的NaCI,试验屮保持电流恒定，通 电开始后计时,到预定时间后迅速取出极板，静駅沉 降在水深lOnun处虹吸取水监测。磷的含晴用钳酸 钱分光光度法测定引o 2实验结果和讨论2. 1电解时间刈除磷效果的影响废水含磷浓度20mg/L,沉淀时间为20min.以铝、 铁为极板，电解时间与除磷效率(ITR)及能耗如图2、 3所示。山图2、3可以看出不论是铝极板、还是铁极板, 在一定的电流密度下，随着电解时间

6、的增人，磷去除率 增加，同时还町以发现在电解的眾初一段时间内磷去 除率増长迅速，随后随着电解时间的增加，左除率增加 缓慢。分析原因：在电解的初期,电解产生的金属离子 较少，不足以沉淀溶液屮的磷酸根离子，随着电解时间 的增大，电解产生的金属离子(Alu、Fe")增多，从而 使磷酸根和A13*或Fe"结合生成A1P04或FeP(h的 儿率增大，使磷去除率増加,同时由于电凝聚过程产生 的金屈氢氧化物具仃强烈的絮凝吸附作用，加速了磷 的去除当电解时间继续增大时废水屮的磷酸根离子 C经相对较少，牛成磷酸盐的帕会相对降低所以去除1994-2012 China Academic Jour

7、nal Electronic Publishing House. All rights reserved.电凝聚除磷及动力学分析 张惠灵等和科研发表论文10余篇.（电话）027- 68862331（手机电 fi Iff） li uiling_zh aiig69 holmaiL com。率增加变得缓慢。比较图2、3还可以发现，在相同的电流密度和电1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.电;疑聚除磷及动力学分析张惠灵.等试验号指标回归方程相关系数1A

8、i,CA = Goex|)(- 0. 1642/+ 0.3629)0. 922Ah= CqexM- ft 1952/+ 0.202)0. 973FeiG = CgeqM- (1 (M48/+ 0. 176)0. 974FeaCA = G()expf- 0. I056/+ 0.2335丿0. 90注:Cj、Ca分别为原水和电解某-时间卜的磷浓度，单位mg/I.；拆标参数代衷为极板材料.参数指标的卜标数值为电流密度 tfi.巾位 in A /(w2 电流密度/mA cm* 图4电流密度与PPR单位能耗关系曲线(铝极板)图5电流至度与PPR单位 能耗关系曲线(铁极板)衲度沁£的打粹M度20

9、吨亿的位屣耗0 0300 G0 02S0 :00150 >00150 0 0100 0 00500 00<><>r/min图6电解密度与PPR单位能耗关系解时间卜铝极板的磷去除率明显高于铁极板当电流 密度为2mA/cm2,电解时间为5min,电解铝极板对磷 的去除率为53. 25% 而铁极板的仅仅为4. 5% :电解 时间为lOmin时,铝极板对磷的去除率为84. ()3%，而 铁极板为60. 8%。分析图2、3可以看出，去除单位 磷铁极板的能耗比铝极板的高在电解时间为lOmin 时,铝极板的单位能耗为0. 0123kWh/g磷，而铁极板 为0. 0217kWh/

10、g磷.如果达到和同的去除率,铁极板 的能耗为0. 0434kWh/g磷，比铝极板高约3. 53倍。 我们知道，铁和铝的标准氧化还原电势分别为：A1/ A1" = - 1.66V, Fe/Fe2+ = - 0. 44V, Fe+ / Fe" = + 0. 771V,这町能是两种电极能耗差距大的原凤所以 对电凝聚除磷来说铝极板要优于铁极板。分析图2、3发现在电解的最初时间内,去除单位 磷的能耗特别髙随笛电解时间的増大,能耗降降低 到某一值后再随杆电解时间的増大，能耗增加，且能桂 卑木上与电解时间呈线性增加将能耗曲线与去除率曲 线比较发现在此最低点以后，随电解时间的增大磷去 除率

11、增加比较缓慢而H在相同的废水浓度和相同的极 板材料卜：此能耗最低点随着电流密度的增加向左迁 移,即随着电流密度的增加，达到相同的去除效果所需 的电解时间降低。能耗Z所以出现转折点分析原肉: 电解赧初过程仃一个极板活化过程，在电解时间比较短 的情况下，此过程所占的比車较人,仃效效率低所以出 现放初时间内去除单位磷的能耗很高。为了降低能耗, 建议电解时间取能耗转折点稍微偏人一点。另外分别対铝极板、铁极板电凝聚除磷进彳亍了动 力学分析，发现剩余磷浓度与电解时间之间存在一定 的关系，如表1。山表1可知,电凝聚对磷的去除符合 一级反应，即浓度与电解时间之间存在如下关系Ci = C<oexp(- A

12、r + A)，苴中反应速率常数k与电极反应 速度(电流密度)仃关,随行电流密度的增加，反应速度 加快,去除效果增强这在试验屮也已得到证实。表1污染物浓度与处理时间的关系2.2电流密度对除磷效果的影响在电解时间lOmin,沉淀时间20min的条件卜，采 用不同的电流密度対磷浓度为20ing/L的废水进行处 理图4.5分别是以铝.铁为极板.电流密度与除磷率 和去除单位磷能耗的关系图。如图4、5所示，不论是铝极板还是铁极板在相同 的电解时间和沉淀时间下，随着电流密度的増尢去除 率增加，但当电流密度增加到一定数值后，去除率增加 速率变得缓慢。然而比较图4、图5可以看出对于铝 极板，当电流密度>

13、1.5m A/cm2以后，磷去除率增长 就开始变得缓慢而对于铁极板，电流密度3.0mA/ cm2以氐磷去除率增长力变得缓慢所以在相同的电 解时间内，要达到相同的去除率铁极板要求的电流密 度人，而且随着电流密度的增加，去除单位磷的能耗 增加,所以在相同的电解时间内达到相同的去除率，铁 极板的能耗要高于铝极板同时山图4、图5町以分析 得到，为了降低能耗在满足要求的情况下，尽可能选 择较小的电流密度。对电流密度与去除单位磷的能耗关系进行了分 析发现不论是铝极板还是铁极板，去除单位磷的能耗 与电流密度之间存在指数关系如表2所示，即去除单 位磷的能耗0与电流密度x之间存在如下关系：Q二 &【ex

14、p(4x丿，其中是与极板材料仃关的系数。表2单位能耗与电流密度关系极板单位能耗与电流密度 关系的回归方程相关系数AIQ 二 0. 0037小曲0.7105戈丿0.99FeQ= 00089exp(0470“ 丿0.972.3浓度对磷去除效果的影响图6为以铝为极板.在电流密度为2mA/cm沉 淀时间为20min 电凝聚对不同磷浓度废水处理的 效果和能耗分析。由图6可以看出，在相同的电解时间内,浓度越 大,去除率越低。对于磷浓度为20m g/L的废水在电 解时间为l()min时.去除率为84. ()3% .而磷浓度为 l(X)rng/L的废水去除率仅为17.65%,但随着电解时 间的增人高浓度废水的

15、去除率继续以高速率增加，当 电解时间达到30min以后，去除率也接近90%.所以 对于高浓度的废水在相同的电流密度下，要达到和同 的去除率，需要花费更长的电解时间,这足囚为在单位 时间内电解产生的金属离子的鼠相等，而高浓度废 水要达到相同的公除率所需的金屈离子的量增人，B 此需要更长的电解时间产生所需金属离子。同时如图 6所示,随着废水中磷浓度的增加，去除单位磷的能耗 降低。分析原因如下:在相同的电解时间内，电解产生 的金属离子的吊不变，高浓度废水屮的磷酸根与金属 离子发牛凝聚的机会增大形成絮凝体的儿率增加，电 解产生的金属离子的利用率増大，单位时间内去除磷 的总帚增大，从而使去除单位磷的能耗

16、降低。2.4 pH对除磷效果的影响以铝为极板，电流密度为2mA/cm电解时间 10min ,沉淀时间20min. ill pH与PPR的效果发现当 pH为7时去除率达到最大值，即电凝聚除磷在中性 条件最好,废水在处理过程中不需要调节 pH o 3结论(1) 电凝聚除磷仃很好的效果随着电流密度、电 解时间的增大，去除率增加去除单位磷的能耗增加; 另外磷的去除率和单位能耗随废水中磷浓度的增加 而降低。(2) 电凝聚除磷.铝极板优于铁极板。(3) 电凝聚对磷的去除符合一级反应，磷浓度与电 解时|'训存在如下关系：Ca = Ca() exp(- kt + A)，其中 反应速率常数&与电

17、极反应速度(电流密度丿仃关,电 流密度越人，反应速率常数人越人；另外电凝聚除磷单 位能耗与电流密度满足指数关系:Q =仙exp(虹叮， 其中A-i、4是与极板材料有关的系数。参考文献II 1顾小红黄种买.虞启义.污水除磷技术的现状及发展趋 势J 资源再生研究，2002, 3: 33-35.2邓聪，邓春玲.杨疔喜，等.污水除磷技术J云南环境科 学.2003. 22( 1):52-55.(3| Nihal Bekla% Hil.il X kbuluL Hat ice Inan. H al. Removal of phospliate fn)m aciueiMis solulioiis by ele

18、ctcoagulation| J| Jounial of 11 azanlous Materials, 2(X)4, 10k 105.4中国标准出版补第二編辑室.中国环境保护标准汇編水 质分析方法S.北京：中国标准出版社.|5)冯爽，孔海南,褚春风，等.电凝聚去除二级处理出水中的 磷J.中国给水排水,2003, 19( 1):52-54.(收稿 2004-06-07:修冋 2004 IQ22)© 1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.ki.ne?电;疑聚除磷及

19、动力学分析张惠灵.等© 1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.ki.ne?电;疑聚除磷及动力学分析张惠灵.等(上接第42页)析结來中，高坏的组分在第一主成分上仃高载荷，而低 环的组分则在第二主成分上仃高我荷。在所仃的分析 中Ant 直是一种恃殊的组分，这表明可能存在特殊 的污染源或自然因素。参考文隸| 11 Johnson R W idierti 1) *pplied M ulIiv ariat e ?naly- sis| M. NJ: Englewood C

20、liffs PrenticeHalt Inc. , 1998.2 Keith L H ,Trlliar<l W A. Priority Pollutants 4 A Perejiee- I iv e iew | J| Environmental S-ience & f r(4i nolog y> 1979.13： 416423.3 崔艳红，朱雪梅.郭剧青，等.人津污灌区土壊中多环芳婭 的提取、净化和测定|J.环境化学,2002. 21( 4) ： 391396.4 陶潮.应用数理统计方法M北京:中国环境科学出版 比 1994.5 SmiriK)v A. AbrajaiM)

21、T A Jr, SiniriM)v A, el al. Dislrilxw lion and Sources of Polycyclic Aromatic Hy(lroairlx>n8 in I he Sedimrnls of Lake Erie. Part l Spaluil <lisl ribut ion. transport aixl deposit ion) J|()gani (ieochemistry, 1 998 29： 18121828.6 Prtia- Mnidez E M Aslorgit- Es|Kina M S, Gaicia- Montelongo F J

22、biterpretation of Analytical Data on N- A Ikanes and Polynuclear Aromatic Hydrocarbons in Arliacia Lixula from lhe Coasts of Tmerife ( Qinary Islands, Spain ) by M uhivariate Data A iuilysis| J). ClirnMihpliere, 1999.39: 22542270.7 Wilcke W. M uller Kanchaanakool C N. el aL Polycyclic .Aromalic Hy&l

23、t;lrocarl)ons in Hydromorphic Soils of the Tropical Metre>polis Bangkok | J | . Geoderma. 1999. 9 1: 297-309 | 8| Tra|>i(k> M . Polycyclic Aromalk- H ydrocarbons in Estoni- an Soil: Contamination and Profiles | J . Env ironmen tai Pollution. 1999, 105: 67-74.9 Berner B A Jr, Bryner N I Wise

24、 S A, el aL Polycyclic: An>malic Hydrocarbon Em issions from Combust ion of (-ni<lr Oil on W aterf J Env ironinriital Science & T oology. 1990,24： 1418-1427.| 10| Mc(2rea(ly S. Slee D J. Birch (； b 仪 al. Elie Distribution of Poly cyclic Aromatic II ydrocarlMiits in Surficial Sediments of S

25、ydney H arbour A ustralif J. Marine Pollution Bulletin. 2000,40:999 1(X)6.(收稿 2004-03-30:修回 20040525)© 1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.ki.ne?AbstractEnviron mental Science aiul TechnologyVol. 2& No. 3, May 2005.1994-2012 China Academic Journ

26、al Electronic Publishing House. All rights reserved .1994-2012 China Academic Journal Electronic Publishing House. All rights reserved arial e analysis is far l)eller than I lie uni variale oneKey words: T uinjiiK PA H s; mu II ivariale analysisStudy on Structure of Bacteria with Two Kindsof Activat

27、ed Slud学 Deaded BenzoateWkstcwater by ARDRAZHANG Qi»g1,2. CHEN Li-weil, HU Jiang',FANG De-hua*, LI Shun-peng'(1. Key Laboratory of Agricultural EnvironmentM ic robin I ogiai I Engineering of M inis I ry (jf riculltire College of Life Science, Nary in A ri culturalUniversity 9 Nanjing 21

28、0()95;2 Col lege (才 Resource(uul E nv ironmen! Science.Sotiihw esIAgriculturaI Universify 9Chongqing 4(X)716丿Ahstract ID: 1003-65(M(2005) 03-0043-04-EAAbstract： The diversity of inicroorganisnis associated with two kirnis of ad ivaled sludge cuhivated in different corwlitions w as ecamifted by both

29、cult ivation- based and molecular- based anal v- sis. .Aft er lol a I <y> mm unit y genomic l)N A was han eslrd from the sludge oligonudeoiides oumplemeni ary t o conserved regions in I 6S1)X1 A of bacteria were used for PCR arnplifi<aation. The 16S rDN A PCR products were suIm IovihI uimI

30、further characterized by a reslr iclion fragmeiil length analysis termed AR DR A ( am pl if ini rDN A restriction analysis). Results re- vealecl great difference between two kinds of sludge: about 20. 4% of fingerprinting is special in the lilwary I an<l 24. 3% in ihr lib rar)* 11. 103 and 107 ki

31、nds of fingerprinting are obtained by ARDKA but onlv 7 and 8 kinds of microbials are cultured in ilk* |>)atn account for 6. 8% and 7. 5% rrsjxTlivelyw which Revealed that A KI)R. is <i<lvantageous over the div ersily of microorganisms in lhe slu<lgeKey words: benzoate： diversity: A KDRA:

32、 f higerprinlingStabilization Analysis (f Household Wastein Small Dumping Sites in Three Gorges AreaLIN Jiah-wei1, WANG L4-ao2, CHEN Ling',HUANG Chuair, HU Gang2(1 College of E nv iron m en I Science a nd Eiif( ineering Tongj i University 9 Shanghai 200092;2. School of Resource and Environment f

33、Qiongqing University 9 Chongqing 400(X44)AhKtract ID: 1(X)3-65(M(2(M)5) 03-(X)46-03-EAAhstract： Il is importanl Io take effectivr measures for managing tln>se small duin ping siles which are slia|)e(l due to disorderly pilrup of municipal solid w aste along the Yangtzt* K ivrr and its tributary n

34、alvsis ami judgintuit of their stabilizat ions are direct ly related to valklit y and |>ertirien( e of the <lis|M)sal. Organic in alien lix iv iu in inchkling COD, TN t TP and w ater conlenl was atialy zed to assess the st abi lization (legree of three small <luvnpiiig sites IIml dosed for

35、four or five years in Three Gorges area Key words：household wasle; stabilization(lrgrreEnvironment Interpretation ofSedimentary Pigment in the East LakeYANG M ing*,QIU Ha4-ou',T ANG Zh4-yong',(/(J aH-shetig2, H l A N Fen1, CHEN Y ua»-x iong1(1 College of Material Science and Chemical En

36、gineering;2 College of Enr iromnenl, China Univ er sit y ofGeosdena?s, Wuh(ui430074)Abstract ID: 100165()4(2(X)5) 05-(X)48-0EAAbstract Several rneasiireinpiil inelhcMls as w ell as envi ronrnenl interpretation of pigment in sedifnenl of lhe East Lake by U V spedrometry was iiilro(lii(ae(l I o discus

37、s hundreds of years of vironiikiit ev olut ion in lliene area Results sliowed that lhe Lake is in a status of heav y hi trophical ion in recent t w Hity years with industrial clevelopiiHHit atxl |M)pulal ion inerrase Key words： East Lake; sedimHit: pigmentChange of Aldehyde and Ketone WhenUsii> B

38、enizine with Etlianol by VcliiclesPENG Hua. WU Xhrjie,LI M ing, KON G Zheng(H enan Env ironmenlal Monitoring Centre, Zhengzhou 450004) Ahstract ID: 10046504(2005) 03-005P02-EAAbstract： The conlenl change of a Idehy <le and kel one in tail gas after using benizine w illi ethanol by vehicles was st

39、udied. Results showe<l the(aontent of aldehyde increased obviously w ith average increased rate of 47. 8 92. 1%; wliilr IIh* rontt'iil of kelorie iwreased slightly with iiK-rease of 16. 6% arid 25.3% Key wewds： vehicle ex haunting gas; benizine w il li ethanol; aldehyde and keloneApplication

40、of P-Matrix MLR Methodin Determination of COD by PhotometrySHI Chao-jun, LIU Xia(尸yin. MENG Jian-xin(Department of Che in istry, J i tian Unit ersily 9Guangzhou 510632)Ahstract ID: 1003-6504(2005) O3-OO5S-O2-EAAbstract： COD delerinination by |4iol()!nelry is letter than lhe recoin rnrrukd m el hod l

41、)y nal ion a I st atMlard <lue Io its (juicker an<l easier manipulation Howe'er, severe errors are liable lo occur when sample has some cn-existent mH al ions This pa|>er introduce a teehniejue of T2-matrix MLR which can eliminate this kind of interference of metals Kelale<l ex|)erit

42、nenl s luve been mndudtxl lo demons!rate the fundion of matrix MLR as w ell Key words:COD; photomrfry; P-mat rix; |)artial calibrationComparison of BTEX Detection in AirIJ Bing-qing, WU Shi-jian, M A Wei(Shanghai Municipal Etivironmenl M(miloring Centre.Shanghai 20()030)Ahstract II): 1(X)3-6504( 2(X

43、)5) O(X)55-O2-EAAhstract： file <lifferen(r between or king curves and ralibralion curves of BTEX in gas standard w ith active carbon absorl>e<l an<l CSa desorbed was a>mparect in which styrme had a big (litfereiwe in either of them.Key words: gas cliromatography; BTEX; gas standard: a

44、clive (url)onRemoval of Phosphate from Aqueous Solutions by Electro-a)agulation and Kinetics Analysis ZH A NG H u-i-ling1, I.l Liang- hua1, YI J ia ng-mi if (1. College oj Chemical Engineering a nd Resource Environment, WtJuui I niversity of Scientv and Technology W u/k/n43(X)Kl;2 Wuluui Gtuidian Co

45、. Ltd. , Wuhan430082).1994-2012 China Academic Journal Electronic Publishing House. All rights reserved IV .1994-2012 China Academic Journal Electronic Publishing House. All rights reserved AbstractEnviron mental Science and Tech nolog y Vol. 2& No. 3, May 200591994-2012 China Academic Journal E

46、lectronic Publishing House. All rights reserved.1994-2012 China Academic Journal Electronic Publishing House. All rights reserved.Ahstract ID: 1(X)3-65(U(2(X)5) ()3-(X)57-()3-EA.Ahstract： The rrmoval of pliosphale was tff icienl lo treal pho?- pliorus containe(i w asl en ater by eled ro- <eoagula

47、lionw and ki- nelics ana lysis show e(l lhal tlie removal was in acc-orcLince w ill) tile first reuclionKey words:electr<>-(naguki ion:phosphorus (aonkiiixj(lwaslew atenanalysisClassification of Vegetation Individualsand Attributes in Loess PlateauLI Su-qing1, LI Bin2, ZHANG Jin-tun1(1. Rsearc

48、h Institule ofPlateau,S lui rix i University, T aiy uan030006;2)epart me nl of Erw ironmenl and Safe E nineering.Zhongbei University. Taiyuan03005 )Attract II): 1(X)3-6504( 2(X)5) 0M 006(4 0)EA/Xhstract： The vegetation individiiak and attributes in Loess Plateau w ere classified by (；IS lechtiology

49、and TWINSPAN (Iw o- way intiicator species analysis). Results allowed that the Plateau u as classified inlo four zones, in(4u<liiig f ive suit-zones, which w in accordance with llir rrnultn obtainr<l by DC A ( <k trended corres|M)!i(leiHv analysis) CC A ( (-anonical (urrespott- derx-r analy

50、sis) and IX1C A (delend rd (eaiM)iii(<il (i>rrespon- detice analysis)Key Mords: Loess Plateau; (JS; vegetal ion; class if i cut ion of indiv iduals and allribulesApproaches to Acceptance Check M(nitorii> ofEnvironmental Protection for Construction ProjectsZHENG Lu-min1. YANG Sh-i-jiair, JI

51、Yae- tong3/ 1 Jiangsu Prov itu ial E nv iron men!Monitoring Centre. Nanjing 210036;2. CY TS Sysnel Environmental Co. Ltd9 Nanj ing 21 (X) 12;3. S tu/ian 1/ u nicipal Environ menialProted ion Bureau. Siufian 22 38(X)Ahstract ID: 10036501(2005) 03-0()63-02-EAAbstract： According to lhe national adm mis

52、tral ion regulat ions concerning managemenl of construction projects. 111 is paper poses problems in I lie acceptance check monitoring for lhe !>ew ly completed industrial projed. Suggest ions for strengthening lhe inoiiiloring are pul forward.Key words： <aonsl ruction project; com pl el ion;

53、aceejilance dirck monitoring; en ironmental protectionPreliminary Study on Tradable Pollution PcniiitsH U Qiact-kai(Department of Chemistry an(1 Enviroiunental Engineering,H ubei N or ma! College. H uanshi 435002丿.Abstract ID: 1003-6501(2(X)5) 03-a)65-03-EAAhstract： I lie iinportanl role of trade of

54、 pollution |)er!nils played in <lis|)osing social resoinee and environtiKUil inaiiageinent w as discussed, as w ell as ils <air(*unislan(ae operation in (Jiina Key words： trade of pollutionresour(v <lis|M)sal; rnvi-r on in ent managementEcok)cal Envinminit Adicn Plan for Duoka Gdd MineXIANG

55、 Zhen1, CHEN Sli«-juaiiWU Xiang-pei3, ZH AO Bao-chang1(1 School of Chemiuil Engineering Nary ing Universityo f Science and Technology, A anj inf： 2 10()94;2 / aix i Pref edtire En vironrnent M unit or inf：Centre H aixiH 170()0;3. Q inghui Rexettrch atul Design A rail enty of Env ironmenl Scienc

56、e, X ini ng 810()07 ) Ahstract ID: 10046504(2005) 03-(X)67-03-EA Ahstract： Ecological hiviroiinient ad ion plan xv as worked oul Ixised on invesligating rxisting status of natural rnvironrnenl an<l ecosyslem of Duoka Gold M iiie, for the |)ur|M>se lo estaHi?- liing a healthy and safety ecosyst

57、emKey words: go Id miw: r(x>systrm; t realnuuil: planGreen GDP Accderated by Circular EconomyWANG Xian-enZHAO Xiao-xia', CH EN Yin肾畀，QIU L-i-min1, LI Yuig-hua3(1 Colle()f EnvironnietU and Resource.Jilin University, Chajigchuni 30026;2 Research (Venire of Nortlieasl .45/a,Jilin University 9 Changchun300 2:3. S liulan Municip al Environment Prolet lion Bureau