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Sludge PressoTechnological innovation in sludge concentration system Innovation in ecotechnology (Patent No.10-0786354)

Intermittence Sludge Thickening System

Intermittence Sludge Thickening System (Patent No.10-0786354)

A system that maximizes the efficiency of main treatment facilities by efficiently removing nitrogen and phosphorus while also preventing re-release of phosphorus in recycled water and lowering sludge treatment costs by drastically reducing the amount of sludge generated with innovative technology compared to the existing method of thickening excess activated sludge at sewage / wastewater treatment facilities.

· When remodeling or improving the efficiency of existing sewage / wastewater treatment facilities· When newly building or extending sewage/wastewater treatment facilities · Various sludge reducing facilities (independent installation possible)

Site name Content Pre-concentration Post-concentration Remarks

Small-scale sewage treatment facility in “AAA”

(Treatment capacity: 70 m3)

Amount of sludge generated (m3/day) 3.9m3/day 1.0m3/day 2.9m reduction

(74% reduction)Cost of collecting sludge

(million won/yr) 21 million won 5 million won 16 million won in anticipated savings

Small-scale sewage treatment facility in “BBB”

(Treatment capacity: 50 m3)

Amount of sludge generated (m3/day) 2.7m3/day 0.63m3/day 2.07m reduction

(77% reduction)Cost of collecting sludge

(million won/yr) 14.6 million won 3.4 million won 11.2 million won in anticipated savings

Sludge PressoKnow-how for sewage & wastewatertreatment facilities cost down !

Sludge Presso is...

Sludge Presso’s continuous 4-stage treatment process?

Anticipated Effects

Application

Application results

Anticipated Reduction from Installing Sludge Presso

· Reduced cost of treatment and sludge transport that comes with sludge thickening (achieves concentration of 70~75%)· Fully automated unmanned system enabling convenient maintenance· Compact and simple structure with low maintenance costs (daily power consumption of less than 1 kw to treat 10 tons of excess sludge)

Advantages

· Reduces the bulk of sludge to 1/3 by concentrating incoming sludge by over 70%· Able to install in small spaces at 1/3 the size of existing sludge thickeners · Lowers maintenance costs by reducing the sludge collection frequency to 1/3 that of existing facilities· Simple operation without breakdowns, innovatively reducing sludge treatment costs· Exceptional improvement from existing sewage/wastewater sludge thickening systems · Maximal efficiency of water treatment system and stable efficiency maintained with additional removal of T-N and T-P in recycled water

Concentration of inflowing sludge

Concentration of outflowing concentrated sludge

4377 mg/L

11820mg/L

Small-scale sewage treatment facility in “AAA”

Concentration of inflowing sludge

Concentration of outflowing concentrated sludge

2583mg/L

8620mg/L

Small-scale sewage treatment facility in “BBB”

3 Settling

4 Outflow

2 Aeration

1 Inflow

2.7 times concentration 3.3 times

concentration

ESSA CO., Ltd#588 Dongcheon-dong, Gyeongju-si, Gyeongsangbuk-do, KoreaTel : +82-54-741-2188 Fax : +82-54-775-0895

A/2008 20F Samhomulsan B/D 275-1 Yangjae-dong, Seocho-gu, Seoul, KoreaTel : +82-2-589-2220 Fax : +82-2-589-2218

e-mail : essa2188@hanmail.net / www.essawater.com

Environment based research Construction

MaintenanceTechnology consulting

Design

OnestopTotal Solution

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