Agenda - 10-01-2001-5 - Laserfiche WebLink

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,:c ~,,. ~ r„ ~, ,!. MEDIORANDUM ' ' "- a ro: mnn unm, roomy Manager Rrom: Gayle Wilsoq Solid WaztcMmegemw[Dnectar Subject Cmtalued COmpostin6 by Orange County Dote: Septmibm 29, 2001 the kllowuag memo explains the basic¢ ofemtratized wmmemial wmpos[ing of organic wastes; Orange County's consideration of cmvalaed composting Nus faz, the Cvwty's acfive composting programrinng, artlprospe<ts frr expve tan ofthe Cowry's wmposting effort. A Brief ExolasmtfaD of the Mechanics of CcntraEzed ComnostinE CmtralizM composting of sepamt l organic matuisls ormixed solid waste eve be conducted using everiety ofinetbnds and feedstocks. Cmhali>.almmposting is distinguished Gom backyazd or other vuall-scale, on-site composbng by the scale, the fad that in a cenbalized system, materials generally are hmugbt in Corm othtt sites and Neary equipment is required to create the wmpost and prepazeit for mazkd wdsell i[ Development ofacmfrallzed composdng facility involves: • state pmmihivg ofNe facitiry • dhighmlevel afmarugemem wdcovtrol of ivpu[e, processing and outputs [hen xyuir<d in stockyard .rystem • significant investrnOR m v Gdl(ty/xgvipmm[ • siting ism • development ofa cnmprehmsive mga:GCS Collective pmgmm in centralised wmposting, feedstocks may include a vmicty of ocgerde waahe including yard wastes, God, woad clilps, law-g[edepaper, biosolidc (sewage sludge), egdwlvmm, baNwl4mul rvas[es and indvsrtial wutes.'fhere is same debate in the solid waste pmfesaion about Now much paper to ivcorpmate ivto composang systems, as much of it (notably cardboard, newspaper wd oRCe papa) has mosvalveas reeyolGtg fedsmck tbw wbm aced in wmpost. Siang a omposting system to accept Imge amawte ofpaper eamd reduce the effeetivmees ofothm rnyding approaches in order to'Ceed' Ibe compostn6 fanilitY adequarely. m Orange Cowry, the primary feedstocks could be sovrcrseparmed organics from both the MSW ana CffiD waste streams, as well as IINC'a opemtlom. Ffowevm, with the cxecpfion o[drywell, existing mpmposed meat recycling programs already menage yr will aYlress moat major cmegones oforgmic material. there is wmparatively little orgatuc industrial ov agrimltuml wash pmdvc~ in O[avge Covvry, such as stivJtt result Gom food pmdudion plants, large sawmills, or extensive cordined mwal miring operations. Centralized cmmposing mdhods ruv be gmemllydessifiad az windrow, lv-vessel or smtlcpile. Typically fie windrow method is used where space is inexpensive and odor control is not a