发泡胶的循环再做

SolutionforrecyclingEPS

發泡膠的循環再做LEUNG,WaiOn梁維安先生Waste&EnvironmentalTechnologiesLtd.保然技術有限公司Material物料EPSPPPSVisualImpact視覺污染

Recyclingplantatfishmarket在魚市場內的回收工場MethodsforrecyclingEPS

回收發泡膠的方法Compression壓縮Extrusion擠壓De-polymerization反聚合Dissolution溶解WastewaterTreatment污水處理Pre-treatmentsystemforEPS發泡膠預先處理系統On-BoardEPSCompressionMachine機載的發泡膠壓縮機CompressionplusHeating(Extrusion)壓縮及加熱Left:MachinethatconvertEPSintofueloil;左:將發泡膠轉成燃料油的機器Right:FueloilproducedbyrecycledEPS右:從發泡膠循環製造的燃料油EPSisdissolvedind-Limonene發泡膠熔化在d-烯中On-siteEPSdissolvingtruck現場熔化發泡膠的貨車RecyclingProcessofRecyclingPlastics回收再做塑膠的過程CompositionofWPS

木塑膠的成份Material材料Composition成份(wt%)Wooddust(150-200μm)木粉粖

30-80RecycledEPS循環再做發泡膠20-70Additives/Modifiers添加劑/緩和劑<1Equipmentset-upforproductionofWPC製造木塑膠的設備ProductofWoodPlasticComposite木塑膠的製成品ComparisonbetweenWPCandWood

木塑膠與天然木的比較WPC木塑膠NaturalWood天然木Resource資源Recycledproduct再做產品Environmentalproblem產生環境問題Hardness硬度High高Relativelylower低MoistureResistant抗潮濕Notrot不腐爛Poor差WeatherAbility扭曲度Nowarp不易扭曲Easilywrap易扭曲Color顏色Colorful多顏色Needpainting需要塗漆Size大小Any隨意Needtosaw需要鋸Price價格Stable穩定Increasing增長中Weight重量Light輕Heavy重EPSRecyclingTrailer發泡膠回收拖車MarketofWPC

木塑膠的市場Undereconomicconsiderations:

經濟考慮

ReduceproductioncostbysimultaneousfeedingofEPSandWoodDust

同時放入發泡膠和木粉末，可減少成本Risingpriceofwoodbecauseofthedeclineinsupply

天然木供應不足導致價格上升LowTreatmentandMachiningCostofWPC

木塑膠的處理費及製造成本較低Underenvironmentalconsiderations:

環境考慮

PeopleadapttouseRecycled/RecyclableProduct

市民已習慣使用循環再做的產品Increasesinpeople’sEnvironmentalAwareness

市民意識到環保的重要性

Emphasizeonsustainabledevelopment

社會強調持續發展

MarketofWPC

木塑膠的市場‘Contaminated’–containpaperlabels,stapes,stickytapeorcolordyeorusedtocarryputrescibleproduct “受到污染”–回收的發泡膠內有紙貼標、包裝釘、顏料或易腐爛的物品Apply‘clean’EPSmakeproductioneconomical

使用”清潔”的發泡膠可使生產更經濟MarketofWPC

木塑膠的市場AlternativeforEPS

發泡膠的替代品Decomposableplastic:可分解塑膠

Photodegradableplastic

光降解的塑膠Biodegradableplastic

生物可分解物的塑膠Biodegradableplasticbag生物可分解物的塑膠袋Conclusion

總結Intermsofcosteffectivenessandavailabilityoftechnologies,productionofWPCismostfeasiblewaytoachievewastereduction

木塑膠是現時較經濟及最可行的減少廢物的方法NoproperrecyclingschemeinHK,only20%of‘clean’EPSarereprocessedintobettermaterials.Thissitu