Ozone reaction technology with high efficiency

What is ozone reaction technology with high efficiency?

In order to accelerate dissolution and oxidation of ozone gas, pressurized ozone gas and treated water are injected and dissolved in a sealed reactor to facilitate contact, dissolution and reaction, thereby maximizing the contact area and strongly promoting the reaction. The ozone reaction technology with high efficiency has improved water quality of treated water to a maximum by dissolving 99.9% of ozone gas within a minute.

Features

1. Reliability of water treatment effect

   • Turbulence reaction is strongly facilitated within a short amount of time, thereby surmounting the limitation in improving water quality associated with the conventional treatment method with more than 99% of dissolution efficiency
   • Treatment efficiency

   Treatment efficiency	Sewage and Reused water	Wastewater	Livestock wastewater and Leachate
   	Color removal : 20~40 → 5~15 99% removal of E. coli Increased dissolved oxygen concentration after treatment (at least 15ppm) Remove other, BOD, COD, etc.	COD 250ppm → 70 or less (72% or more) 1,4 Dioxane 50~150ppm → 5~15ppm (90% or more) Phenol 300ppm → 2 or less (99% or more)	COD : 600ppm → 45ppm or less SS : 550ppm → 20 or less Color : 1,000 → 100 or less

2. Remarkable economic efficiency

   • Saving 50% of total energy costs compared to the conventional method : with less than ¹/₃ of ozone consumption, less than ¹/₁₀ of required site, less than ¹/₂ of equipment cost, and less than ¹/₃ of maintenance cost

3. Environmental friendliness

   • Maintaining dissolved oxygen in treated water at 15ppm or higher
   • In accordance with the relevant laws and regulations on toxic gases thanks to the nature of being tight, highly dissoluble and odorless

4. Compatibility

   • Possible to be installed in a confined space because of the nature of being compact, separable and installable
   • Applied to any water treatment processes : Sewage, wastewater, wastewater reclamation and reusing system
   

Process chart

Actual installation

1. Recycle city sewage water

   Item	No. 1 Plant	No. 2 Plant
   Ozone injection	3g/㎥	3g/㎥
   BOD	5.6 → 2.6㎎/ℓ	6.2 → 3.0㎎/ℓ
   CODMn	6.2 → 4.9㎎/ℓ	7.8 → 6.3㎎/ℓ
   SS	2.0 → 1.4㎎/ℓ	2.4 → 1.7㎎/ℓ
   Color		9 → 5 TCU
   Coliform	9,000 → 500count/㎖	1,000 count/100㎖ → ND
   Volume treatd	100,000㎥/day	103,000㎥/day
   Installation date	July 2005	November 2011

   

   Ozone reactor

   

   Supply of recycle water

2. COD Industrial wastewater treatment plant

   Technology	Electrolysis	Oxidation by Fenton (Existing system)	PAOR Ozone reaction system
   Requirement	Influent CODMn 190㎎/ℓ Effluent CODMn < 90㎎/ℓ
   System description	Gave up submission of proposal due to too much electricity consumption proposed to collaborate with PAOR SYSTEM	Fenton usage $22,730 To meet the requirement from CODMn 190 to 90㎎/ℓ Operation cost will increase 1.4 times
   Result	Rejected	Dismantled	Installation completed on Nov.2006 and under operation(Sep.2013)
   Remark	No.1 Plant : Capacity 1,680㎥/day, Expanded in Oct.2008 No.2 Plant : Capacity 1,200㎥/day(Oct.2008), Expanded in Dec.2009 to the stricter CODMn discharge requirement from 270㎎/ℓ to < 70㎎/ℓ

   

   Ozone reactor

   

   Ozone injection

3. 1,4 Dioxane wastewater treatment plant

   Contaminant	Raw water	Treated water	Removal rate
   1,4 Dioxane	150㎎/ℓ	15㎎/ℓ	90%

   Type		‘A’ Company	‘B’ Company	PAOR	Remarks
   Ozone consumption(g/㎥)		500	300	150
   Ozone generator capacity(kg/h)		7.4	4.4	2.2	10wt%
   Annual operation cost	Elect	170kWH $60,909	100kWH $35,836	50.1kWH $17,955	$0.046/㎾ Load rate 90% applied
   		Oxygen	74kg/h $70,718	44kg/h $42,045	22kg/h $21,027	$0.109/㎏ applied
   		H2O2	15.64ℓ/h $33,636	15.64ℓ/h $33,636	7.82ℓ/h $16,818	H2O2 Maximum usage rate $0.273/ℓ (35% Purity) Load rate 90% applied
   		Total	$165,263	$111,517	$55,800

   

   Ozone reactor