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HomeMy WebLinkAboutRexburg Solids Handling.pdfRexburg(Water(Reclama/on(Facility(( Solids(Handling( 503(Regula/on(of(Sewage(Sludge( • Sludge(Disposal( – Disposal(site( – Restricted(access( – No(beneficial(intent( • Land(Applica/on(or(Use( – Intended(to(provide(benefit((nutrients)( – Restricted(and(unrestricted(use( – Two(levels(of(treatment,(Class(B(and(Class(A(( Class(B(Solids(((((((((Class(A(Solids( • Pathogen(reduc/on(to( level(unlikely(to(pose( threat(to(health/ environment( • Site(restric/ons(for( applica/on( • Addi/onal(monitoring( and(repor/ng(required( (( • Pathogen(reduc/on( below(detectable(levels( • Can(sell(or(give(away( end(product,((no( restric/ons)( • Monitoring(and( repor/ng(at(end(of( process( Solids(Handling(Op/ons(( • Aerobic(Diges/on( – Class(B,(addi/onal(tankage(is(required,(less(effec/ve(diges/on(approach,(high(energy(input( • Solar(Drying( – Class(A((by(tes/ng)(or(B,(addi/onal(heat(source(required,(winter(opera/ons(are(limited( • Gasifica/on( – Class(A,(good(solids(reduc/on,(minimizes(solids(volume,(the(technology(is(s/ll(developing( • Pasteuriza/on(with(Anaerobic(Diges/on( – Class(A,(good(solids(reduc/on,(exis/ng(facility(u/liza/on,(provides(addi/onal(heat,(energy(efficient( ( Pasteuriza/on( • Maintain(solids(at( elevated(temperature(for( appropriate(/me(to(kill( pathogens( • Monsal(70( – Batch(process( – Maintain(70°C((158°F)( – One(hour(reten/on(/me( • Achieve(pathogen( reduc/on(requirement( for(Class(A(biosolids( Pasteuriza/on(Tanks( Pasteuriza/on(–(Heat(Exchangers( Pasteuriza/on(Benefits (( • Pathogen(free(product((meets(Class(A)( • Improves(sludge(quality((rheology)( • Enhances(anaerobic(diges/on(of(solids( • Improves(methane(gas(produc/on,(used(for( pasteuriza/on(and(addi/onal(solids(drying( • Compact(footprint( • Monsal(70(is(proven(and(cost(effec/ve( Solids(Handling(Project( • Use(exis/ng(gravity(belt(thickeners( • Convert(WAS(tank(to(thickened(solids(storage( tank( • Add(Pasteuriza/on(system(and(associated( equipment( • Convert(digesters(to(anaerobic( • Use(exis/ng(dewatering(equipment( • Add(covered(solids(storage(and(drying(facility( Rexburg(WRF(Solids(Handling( QUESTIONS?*