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BIO COAL

With regards to the origin of coal, during the volcanic period of the Earth, acidic flooding was caused by the smoke generation of sulfur oxides. The trees that were swept by the flood were subsequently carbonized due to dehydration by sulfuric acid, which in turn caused the woody parts to become carbonized.

The coal buried by each variation is found with the fossils of protozoa, and it is presumed that microorganisms were proliferated by various minerals and nutrients present in low-grade coal with a low degree of carbonization.

Therefore, by using such low-quality coal to settle with an acidic liquid, impurities and pollen present in the coal are removed and porous is formed.

It can be inhabited by microorganisms, and after this process, it becomes coal. This activated coal is stored in grid-type high-density polypropylene cases, etc., and is referred to as bio coal (trademark registration No. 218151).

Specifications and properties

Classification Material Specifications Remarks
Bio Coal Ⅰ HDPP 75A x 25H Wastewater, sewage, livestock manure, high-concentration wastewater, etc.
Bio Coal Ⅱ HDPP 110A x 50H Wastewater, sewage, manure septic tank, etc.

Principle of Technology

It is a technology with a processing capability that exceeds the limitations of conventional decomposable materials. It is a carrier for anaerobic and aerobic reaction tanks that extinguish and remove contaminants biologically. By filling with bio coal (a biomembrane carrier), which is the core of this technology, the growth of attached microorganisms is excellent on the surface of coal, which is the natural world with the best affinity for microorganisms.
By increasing the deposit amount and by the physical and chemical role of coal, which is the filling material, the oxidation rate of organic matter and ammonia nitrogen is about 2 to 5 times faster than normal biological reactions; however, it also decomposes substances classified as non-degradable.

Technology method description

Bio Coal & Purge Method

Bio Coal
  • As a filling carrier in the aeration tank, attached microorganisms of 20,000mg/ℓ or more maintain 5 to 10 times the activated sludge.
  • The range of contaminants removed is wide as there are diverse types of attached microorganisms.
  • It has high oxidation power due to stable pH maintenance and ion-exchange ability and catalytic properties due to the properties of coal.
  • Discoloration and deodorization by self-cleaning action
  • Minimized aeration tank capacity up until the minimum growth period of microorganisms
  • Possible to induce denitrification and dephosphorization in the aeration tank
  • Because it treats non-degradable materials directly in the aeration tank, no equipment is required for advanced treatment
  • Based on the same level of water quality, the overall economic efficiency including the life of filter media is superior.
  • The general disadvantage of other contact media is that the titer is 0.5 to 2 years, but the performance is maintained semi-permanently beyond the titer limit. (At least 6 years guaranteed)
PURGE
  • Composed of powdered activated carbon and 10% preparation
  • Settling in settling tank when bio coal and purge interact
  • PURGE
    1. Microorganism attachment carrier
    2. Removal of toxic and non-degradable substances by adsorption function
    3. Heavy metal removal
    4. Discoloration, deodorizing power retention function

Features of technology

  • Excellent nitrogen removal.
    Up to 99.99% of organic NH3-N can be oxidized
  • Phosphorus can be removed in the aeration tank without impacting microorganisms.
  • Possible to double the raw water throughput without adding facilities.
    Maintains 20,000ppm of MLSS of bio coal
  • High color, odor and harmful gas removal efficiency.
    Even if only bio coal is filled, chromaticity, odor and harmful gas removal efficiency is more than 50% higher than that of other biological treatments.
    In the case of influent water with high chromaticity, the desired chromaticity can be maintained simply by injecting the purge.
  • As the capacity of the aeration tank is minimized, it is easy to increase the throughput of existing facilities, and it is economical as it is stable against fluctuations in the flow rate and water quality.
  • Maintenance costs reduced by 50% compared to other methods.
  • The life of the filler is semi-permanent.
  • Excellent for heavy metal treatment.
    Ions such as Cr+6, Cd, Cu, etc. generated from self-cleaning action and substitution reaction also treat CN-, etc.

Certification No.

  • Trademark Registration No. 218151
  • Patent No. 058630