Features & Design. Introduction

Transcription

1 GREASE MANAGEMENT

2 Introducton astewater from commercal ktchens s contamnated wth FGS (fats, ols and greases). The ntroducton of FGs and food solds nto the general dranage/sewage system (ether man sewage network or prvate treaent facltes) s detrmental to ts proper functon and has been shown to be a sgnfcant cause of blockages, restrctons and floodng. The FGI Grease nterceptor/separator range has been desgned to conform to both Buldng Regulatons Part and also BSEN 1825 the Brtsh Standard for Grease Separators/Interceptors. The FGI s desgn wll effectvely ntercept (FGS) fats, ols and greases and solds before they enter a wastewater dranage system n so supportng the effectveness of both the dranage system and the fnal treaent process. FGI nterceptors/separators are desgned for larger ktchens and restaurants as well as use n ndustral food processng applcatons and meet all the requrements of the relevant legslaton. The fog s low profle tank can be nstalled n granular surround as aganst concrete, thus greatly reducng the overall nstallaton cost aganst other underground systems Features & Desgn Desgned n accordance to en1825 Nomnal Szes NS4 to NS to 8800 ltres All unts are suppled wth large lockable access cover Avalable n sngle stage and two stage wth prmary sludge trap Desgned for larger ktchens, food manufacturng plants & abattors Super eavy Duty bodes ow Profle Mnmal granular surround nstallaton uge savngs on overall nstallaton Corroson Free - 50 year plus lfe expectancy Full access to all ppework for mantenance Desgned and manufactured totally n the UK 1395

3 hat sze nterceptor do I requre? The Nomnal Sze stpulated n EN1825 can be used to calculate the volume of the Interceptor requred. Mnmum surface area of Mnmum volume of Nomnal grease separaton zone grease separaton zone Volume Sze of the Separaton Chamber (m 2 ) (m 3 ) The above table shows that the mnmum volume requred for the grease separaton chamber s the Nomnal Sze multpled by 0.24 of a cubc metre whch s equal to 240 ltres. So for an NS 4 the mnmum grease separaton chamber would have to have a volume of 960 ltres and an NS7 would be1680 ltres etc. Volume of Sludge Trap The volume of sludge trap needs to be a mnmum of 100 x NS n ltres e. An NS4 nterceptor needs to have a sludge retenton volume of at least 400 ltres. Subsequently for Food Processng Plants, Abbators etc, where larger amounts of solds s expected, then the sludge trap needs to be at least 200 x NS n ltres, so an NS4 nterceptor would need to have a sludge chamber of at least 800 ltres. Desgn of Sludge Trap Mnmum volume of grease collecton area (m 3 ) NS 0.25 x NS 0.24 x NS 0.04 x NS The Sludge trap can be stuated ntegrally wthn a sngle stage Interceptor or as a separate unt stuated before the grease separaton trap/tank. The table below gves a gude to the Nomnal Sze of Trap/Separator you requre, based on number of meals and meals per day. For larger ndustral applcatons lke food processng and abattors, we suggest you speak to us regards the desgn. Restaurant Number of meals 1 servce 2 servces otel Restaurant osptal Schools, Colleges Food Preparaton Number of meals per day Canteen No food preparaton Nomnal Sze BSEN1825 parts 1 and 2 Both the above documents are avalable to download from our webste or can be provded electroncally on request. hat Nomnal Sze (NS) to chose For the sze of grease separators (nteceptors) wth sludge trap the calculaton method accordng to BSEN standard s the followng: NS = Number of meals x V meals x fd x ft x fq 3600 x daly operatng e fd: densty factor; ft: temperature factor; fr: cleansng agent factor; fq: peak factor

4 ow the works astewater whch ncludes FGs (Fats, ls and Greases) enters the FGI va the ppe and mmedately the lghter ols and grease wll begn to separate out n the cooler water already nsde the FGI Any solds wthn the flow, beng heaver, wll drop to the base of the FGI and over e wll form as a sludge whch should be removed perodcally. All FGI unts have been desgned to retan the mnmum solds/sludge accordng to BSEN In the mddle secton of the FGI between the base sludge and suspended FGs the ppe s stuated. Cleaner md water wll dscharge at that pont from the unt. All fog nterceptors come suppled wth a ARGE 625mm lockable sealed access cover There s an opton to have a flow spltter attached (as shown above). Ths wll gve more even dstrbuton of suspended greases and ols at the top surface of the unt.

5 fns4 fns7 sngle stage nterceptors wth ntegral sludge retenton fns12 Desgned to conform to en1825 for underground nstallaton. Desgned for larger Ktchens, Restaurants Pubs, Fast Food utlets and Food and Meat Processng Plants. fns15 fns20 Nomnal Sze Nomnal Capacty (ltres) Grease Separator (ltres) Sludge Trap (ltres) I Ppework ptons Ø Access & Invert Rser penng Ø *Invert Rser eght fns fns fns fns fns Please Note: All dmensons n mllmetres. Nomnal Szes based on BSEN 1825 Ppework may vary dependant on ste. Please request requred ppework on applcaton. * nvert rsers are optonal and not suppled wth unt. NS 12 to 20 requre 2 rsers. 200kg ockable Access Covers are suppled wth unts. eaver duty covers are on request. Approx. eght (klos)

6 fns7s fns10s two stage nterceptors wth prmary sludge retenton tank fns15s Desgned to conform to en1825 for underground nstallaton outsde of Abbators,Meat Processng Plants etc. These unts have twce the requred sludge storage capacty of the standard FGI nterceptor. Ths allows for the ncreased solds nto the nterceptor from the gven process. fns20s I Nomnal Sze Nomnal Capacty (ltres) Grease Separator (ltres) Sludge Trap (ltres) I Ppework ptons Ø Access & Invert Rser penng Ø *Invert Rser eght fns7s x fns10s x fns15s x fns20s x Please Note: All dmensons n mllmetres. Nomnal Szes based on BSEN 1825 Ppework may vary dependant on ste. Please request requred ppework on applcaton. * nvert rsers are optonal and not suppled wth unt. NS 7S to NS20S all have two accesses, so requre 2 rsers per unt. Access Covers are Pedestran Duty only. eaver duty covers are on request. Approx. eght (klos)

7 ptonal Extras Extenson Rsers Flow Spltter Telescopc 400mm to 750mm Flow Spltters can be attached to the of the FGI. The flow spltter splts and dstrbutes the nfluent n separate drectons whch supports effectve ol and grease separaton. Extenson rsers are avalable for all the unts (as shown above). These accommodate the respectve access and access cover and can be cut to desred length wth a standard saw. e recommend no more than 1000mm of extenson s used va extenson rsers. For deeper nverts use prefabrcated concrete rngs or sectons fog nterceptors can be desgned specfcally for your applcaton. Please ask for more detals.. eavy Duty Covers The FGI range s suppled wth a 625mm lockable pedestran duty access cover. owever eavy Duty D400 loadng covers can be suppled at extra cost

8 Relevant egslaton The ater Industres Act 1991 makes t a crmnal offence to damage the sewer network by ntroducng FGs nto t. The Buldng Regulatons (Approved Part ) requres any hot food premses to nstall BS EN1825 Grease Interceptors n ts dran runs. The Envronmental Protecton Act 1990 mposes a Duty of Care on commercal premses wth respect to ther waste and ths ncludes FGs. The Food Safety and ygene Regulatons 2013 (ncludng ACCP) sets out objectves ncludng the management of FGs. Tel Emal: sales@turtleenvro.co.uk