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Technology

We invest on our research and development today; because we believe technology is what will make us competitive tomorrow.

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Communication between the nature and technology HDEC’s environment-friendly construction promises the future of the mankind.

- Converting the organic waste into biogas
- Producing the bio-products from food waste and manure
- Purifying biogas to high-concentrated bio-methane(CNG)
- Remediation of petroleum and heavy metal contaminated soil
- Remediation of contaminated dredged sediment
- Recovery of nitrogen from high nitrogen wastewater
- Recovery of phosphorus from high phosphorus wastewater

Bio-energy recovery from organic waste
1. Technology for Bio-energy Recovery from Organic Waste by Using Anaerobic Digestion and Advanced Treatment of Digested Sludge
2. - Biogas recovery by using anaerobic digestion
  - CO2 separation and bio-methane production through biogas purification process
  - Removal of high-concentrated nitrogen by ammonia stripping
  - MBR process for stabe wastewater treatment
  - Intellectual property rights
    - Domestic patent (4) : Filtration system and operating method for a membrane-coupled anaerobic digester.
3. Q&A : yokim@hdec.co.kr
Remediation of Contaminated Soils by Using Soil Washing Process
1. Optimized Technology for Remediation of Soils Contaminated with Petroleum and Heavy Metals and Treatment of Contaminated Dredged Sediment by Using Soil Washing Process
2. - Separation of fine soil particles by using micro cyclone
  - Precision dewatering of fine soils by using Horizontal Vacuum Belt Filter
  - Making better use of a site and eliminating environmental hazard by remediation of contaminated soil
  - Intellectual property rights
    - - New environment technology No. 92 : soil washing of uncontrolled landfill soil-washing of aquaphilic contaminant using air turbulencing pipe
    - - Domestic patent (4) : Remediation of contaminated soil by soil washing, etc.
    - - International patent(2) : China(1), Japan(1)
    - - Patent of a new device(1) : Removal machine of waste in separated soil using difference of specific gravity
3. Q&A : jkjung@hdec.co.kr
Organic Wastewater Treatment & Nitrogen Recovery
1. Water Treatment System for organic wastewater with high ammonia concentration
  ; suitable for anaerobic digestion wastewater and livestock manure
2. - Compact system consisted with Particle separation, Ammonia stripping, and Membrane Biological Reactor
  - Effective and Economical solution for organic wastewater treatment
  - Production of highly concentrated liquid fertilizer through nitrogen recovery
  - Highly reliable and guaranteed performance
  - Easy maintenance by full-automatic operation
  - Patents & Certifications
    - - New Environmental Technology No. 291 : Organic wastewater treatment system : Combination of Closed loop ammonia stripper and Membrane Biological Reactor
    - - Domestic Patent (1) : The Producing Process of Liquid Compost from High Ammonia Concentration
      Waste of Water by Air Stripping, Manufacturing Apparatus and Thereof
3. Q&A : lksung@hdec.co.kr
4. Kimhe Full-scale Project(100m3/day):under construction (Anaerobic digestion wastewater)

Bio-energy recovery from organic waste

Remediation of Contaminated Soils by Using Soil Washing Process

Organic Wastewater Treatment & Nitrogen Recovery