ࡱ> hjg%` RhbjbjNN2,,K#2228j v"(  ,!!!!!!!$?$h&t"9444"4S"4X!4! rCl!`2!,i"0"''F'`h 4444444""d444"4444   V`̀of NbVWGal4lSallW0W)R(uvt R*mm1, _ `2 (1. -NVyf[b 0Wtyf[NDnxvz@b SN 100101 2. -NNSNlqQTVOO?bTWaN^ WG4lR{tRlQ[ SN 100835) Xd WGal4lSall(N N{y W^all )~e[SYtT_U\W0W)R(u/fEQR)R(uvQ{QRT g:g(Dnvgvc_N/fg gHev_0;`~NяNASt^eg bVvMRvV`̀of N W^allW0W)R(uv;N@b(W [͑ё^\0NTQTb/glĉI{ۏLN|~ht0cQNir(_s҉^QS ^͑ƉTcRW^allW0W)R(uSU\ N^cNsT&T[`^0=\{s6kvSU\X[(WN[t FON܏eg wallW0W)R(uMRof[ ^b(NaPN‰`^0 sQ.͋W^allW0W)R(u͑ё^\ Key Issues on Land Application of Sewage Sludge in Chinese National Conditions LIU Hong-tao 1, ZHANG Yue 2 (1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; 2. Urban Water Management Office, Ministry of Housing and Urban-Rural Development, Beijing, 100835, China) Abstract: Land application of harmless or composted sewage sludge is usually regarded as appropriate and effective way to reclaim its nutrients and organic matter. This paper summarizes main issues on land application of composted sludge in recent twenty years on the national condition. Especially, heavy metal, composting products, technical policies and rules were arranged and discussed. From viewpoint of energyflowandnutrientcycling, land application of sewage sludge should be encouraged to develop rather than being consistently prevented. Although some problems, the future of land application of composted sludge has on bright and cautious optimism. Keywords: Sewage sludge; land application; heavy metal (WS~Ǐ_vASYOt^( ASN  ASNN 6k) WGal4lYtS__SU\ \O:Nal4lYtoRNTvW^allnb:N4lYtTV^WvsQlp0ُ;NR_VNallvꁫyr'` yr+R/fvQ͑ё^\I{algir0ؚ+T4lsTv`I{bV } 1uN NYUvYtYnSuvsXalgNN A~ZSO lQO(W_t N[W^all b %N͑algn v0ُy@\bvb_b~6q gvsQYn NY0v{:1YvSV(WQN[‰v҉^eg w W^allvOpTbV } TeX[(W _NQ[W^allTt0yf[vYtYn_6q/fN*NSeEN0EQnNv;N0 NVYSU\SST~eg w W^allvYtYn~SNNEQnN nǏ!n0RYyb/gv^X[ g~b_bTV`vb/g~vxQWǏ z0NVYvSU\`Qeg w e/fW0W^vV[ YV0]I{؏/fVWby gPvV[ Y'kvbXTV0e,gI{ (WNASNN~T W^allW0W)R(uvkOGW(W Necؚ0 S'lmS0qp0xS0S5uI{W^allnS_ (W'kv0e,gI{SV[~SNYt^vb/gxST] zS^(uT vQkOtS(WnMNO0mvzvQSV dW0W)R(uKNYvvQNDnSe_GWRb/gKbkRNRy0cpb~SW^all@bt+Tvnb__(Yll0 g:g(0SqxI{) ُR_ bvcЏLb,gTcb,g(Y>\lc6R0kYOirYn0[hQ2b)vcؚ Te_N NSMQ0WNuN!kalg0\O:NwQ gN[lQv'` gRNT'`(vW^all Te(WW^allYnTvNTNY(W*g[hQ^:WSv6k b,gvcؚ/fNOSv TeN!kalg`_NW^allYS ߋu ,g:Nalglt]\O (WvQǏ z-NSNuMualg (WlQOsXCgaƋؚv̀of N SRvX:__N/fN NYn_kOMNOv͑SV0 W0W)R(up`p` NX[(W N W0W)R(uN9h,g Nu_Dn_s)R(uvSR Ng6qv|NTb__(e0W(WI{)\W^all@b+TvegWXvDnQ!kԏV~W0W0vkNvQNDnS_ W0W)R(uvOpf>f FO[_NX[(WvQꁫ0vMR (W-NVvV`̀of N W^allW0W)R(u(WSU\Ǐ z]b_bQ*N;Nvt s\ُNۏL[‰0|~0Wht N0͑ё^\0 W^allNNuKNR1\X[(W͑ё^\ Nvc~N N*g_0RTt㉳Q u[͑ё^\\o(Walgvw_N*gb_b~N0W^all-N͑ё^\+TϑHTt^ NMvR(2006t^hQV;N'Y-NWW^NuvW^all͑ё^\+TϑN2001t^vk ME^25~55%) ُN]Nal4ln1yu;mal4l|~ gsQ _NNal4lYt]z9eۏ[RvsQ0W^all-Nhv͑ё^\CQ }{|W]NN_wQ g]Nnyr_v0Ŕ0II{lS:N>fWu;mnyr_v^l0 I{0ُySSRfbVvW^all͑ё^\yr_Snnpf :NT~vc6Rce6R[cONW@x0 P (Zn)ُ{|v gvCQ } Ǐ 0allQ(ul(hQ 0vO ]>e[vQ NP

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