TECHWIN
TECHWIN
Best Quality and Advanced Technology for our Customers
Wastewater Treatment
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- Air Pollution Control
- Solvent Recovery System
- Water Treatment Facilities
- Treatment of Power Plant Water
- Wastewater Treatment
Fenton oxidation reaction
Fenton reaction type
- H₂O₂+ Fe² → Fe³ + OH- + OH*
- R- + OH* → CO2 + H₂O
Characteristics
- Used for removal of non-biodegradable toxic materials.
- Excellent replacement capacity to load variation.
- High operation costs
Ozone oxidation reaction
Ozone reaction type
- R-R + O3 → R-COOH / R-CHO /R-OH + O3 → CO2 + H₂O
- high molecule substance → low molecule substance
- hydro phobic substance → hydrophile property substance
- non-biodegradable substance → biodegradable substance
- toxic substance → substance with weak toxicity
Characteristics
- Used for removal of small amount of non-biodegradable COD
- Also used as sterilization facilities at final outlets.
- High initial investment costs.
Treatment using electrolysis
Application
- a. Degradation of non-biodegradable organic matters
- b. High level treatment (T-N removed)
- c. Coolant pre-treatment at power generation facilities
- d. Sterilization of drinking water
- e. Sterilization related to swimming pool, agriculture and foods
- f. Paper and bleaching industry
- g. Production of chlorine gas, NaOH
- h. electrolysis floatation
- i. EDR electrode, etc.
| NO. | Client | Location | System | Capacity (㎥/hr) | Installed (year) | Image |
|---|---|---|---|---|---|---|
| 30 | Chungbuk Cheongju city | Chungbuk Ochang | Expansion of industrial complex wastewater treatment facility | 2,500 | 2016 | |
| 29 | Korea environment Corporation | Gumwang | Expansion of sewage treatment facility | 2,000 | 2016 | |
| 28 | SK Hynix | Cheongju | physical, chemical treatment (HF wastewater) | 2,000 | 2015 | |
| 27 | LG Chemical (Nanjing) | China | physical, chemical treatment+activated sludge (polarizing plate wastewater) | 4,730 | 2015 | |
| 26 | Chungbuk Goesan-gun | Chungbuk Goesan | sewage treatment facility | 90 | 2015 | |
| 25 | Chungbuk Cheongju city | Cheongju Nami | sewage treatment facility | 1,000 | 2015 | |
| 24 | Chungbuk Cheongju city | Cheongju Gadeok | sewage treatment facility | 800 | 2015 | |
| 23 | LG Chemical Ochang 1st factory 1st wastewater site | Ochang | activated sludge (Capa-up) | 1,850 | 2013 | |
| 22 | Samsung engineering | Ulsan | physical, chemical treatment (Polysilicon wastewater) | 2,500 | 2012 |  |
| 21 | LG Chemical (Nanjing) | China | physical, chemical treatment (polarizing plate wastewater) | 1,300 | 2012 |  |
| 20 | LG Chemical Ochang 2nd factory | Ochang | physical, chemical treatment (high density MC wastewater) | 240 | 2012 | |
| 19 | Hanhwa construction | Yeosu | physical, chemical treatment (Polysilicon wastewater) | 2,400 | 2012 |  |
| 18 | LG Chemical Ochang 2nd factory | Ochang | physical, chemical treatment (MC wastewater) | 1,630 | 2011 | |
| 17 | Hynix Semiconductor | Cheongju | physical, chemical treatment (Semiconductor wastewater: HF) | 10,800 | 2011 |  |
| `16 | LG Chemical Paju factory | Paju | physical, chemical treatment (LCD glass wastewater) | 1,500 | 2011 | |
| 15 | ENF Co., Ltd | Ulsan | physical, chemical treatment (ammonia wastewater) | 300 | 2011 | |
| 14 | Woongjin Polysilicon Co., Ltd | Sangju | physical, chemical treatment (Polysilicon wastewater, WWT) | 2,000 | 2010 | |
| 13 | Woongjin Polysilicon Co., Ltd | Sangju | physical, chemical treatment (Polysilicon wastewater, LWT) | 1,104 kg/hr | 2010 | |
| 12 | LG Chemical Ochang 2nd factory wastewater site | Ochang | DAF + activated sludge + Ozone (LCD wastewater) | 2,100 | 2008 | |
| 11 | Daehan Paper Co., Ltd | Cheongwon | Fenton (paper manufacturing wastewater high level treatment) | 15,000 | 2007 | |
| 10 | Iljin environment | Asan | electrolysis (entrusted wastewater) | 200 | 2007 | |
| 9 | Jooyoung Tech | Asan | electrolysis (entrusted wastewater) | 100 | 2006 |  |
| 8 | Dongbu Electronics | Eumseong | CD Dryer (waste fluid drying) | 320 kg/hr | 2006 | |
| 7 | LG Chemical Co., Ltd | Ochang | Ozone | 1300 | 2006 | |
| 6 | Dongbu Anam Semiconductor | Eumseong | Sand Filter + A/C Fiter(semiconductor wastewater) | 3680 | 2005 | |
| 5 | LG Life Science | Iksan | activated sludge (medicine wastewater) | 500 | 2004 |  |
| 4 | LG Chemical Ochang 1st factory wastewater site | Ochang | DAF + activated sludge + Ozone (LCD wastewater) | 1,300 | 2003 | |
| 3 | Saehan Matek | Chungju | Fenton + DAF + electrolysis (concrete pile wastewater) | 250 | 2003 |  |
| 2 | LG VINA | Vietnam | DAF (cosmetics wastewater) | 30 | 2002 | |
| 1 | LG Chemical Iksan factory | Iksan | activated sludge + Fenton (medicine wastewater) | 100 | 2000 |