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Gravel Contact Purification Material
【Patented Product/Method】
Environmental creation purification to protect and cultivate an abundant
natural ecosystem
CELCA is a chemical reaction gravel contact material of non-conventionally machined oyster shells.
It is a safe purification material that improves environments contaminated by water pollution or eutrophication etc.
Processed Oyster Shell Natural
Water Purification Material
An embankment in overspill pollution processing measures at
an earth and sand disposal site
Promotes settlement of turbidity by
delayed slight alkali flocculation
The principal weak alkali component, calcium carbonate, makes a neutralising reaction with nitrogen and phosphorus etc. and continues to have an aerobic effect.
Controls anaerobic substances with a clarifying effect on inorganic and organic matter.Lasting purification possible through appropriate deployment and replenishment.
Grain refined under running water, this product improves the aquatic habitat through continuous purification and as a breeding medium for plankton, spall and by being feed for other kinds of aquatic life.
Channel
Experiment and Practical Example
  
Main Applications
・Turbid water from construction in rivers,
lakes, harbours and development sites ・Purification of discharge conduits into rivers ・Upstream purification for dam discharge points ・General adoption in water treatments such as pollution measures in the vicinity of spillways
・Restoration of natural rivers
・Forest protection (acid rain countermeasure) ・For the purification of water quality and the bed material of dams, rivers, lakes, oceans, estuaries, coastal areas and fishponds
Raw water
After introduction of CELCA
【Observation in a Beaker】
【 Observation in a Wastewater Channel】
  
Wastewater channel
CELCA installation
After passage through CELCA
Influx raw water
Final discharged water
ｐH 7.6
SS 10㎎/L B.O.D 93㎎/L
ｐH 7.7
SS 6㎎/L B.O.D 36㎎/L   
Contact attached microbes
Rivers
Harbours
      
Gravel contact seepage barrier of a spillway (Used with pollution prevention membrane PATORESIA)
Rainfall turbidity control
An embankment as a spillover treatment for a sediment disposal site
Loaded in an iron frame
Sludge purification of an estuary section
Domestic wastewater measures in urban rivers
Turbid water control during repair works (Used with flow inclined flap PATORESIA)
Turbid water control at development sites
CELCAImmersed and set on the riverbed
Reservoir
Installed in a river downstream of the dam
This product is finely broken down by the current whilst purifying the water. It becomes widely suspended in the water and precipitates onto the riverbed and on the banks, facilitating the reclamation of the original natural river environment.
It is also effectively consumed as fish bait. The constant purification of the water environment is made possible along with the effective reuse of waste shells through replenishment with a new supply.
Product Details
    
Red water countermeasure at the overflow section of a rainwater reservoir
Turbid water countermeasures during installation construction in a precipitation tank
Domestic wastewater channels
 
Usage with Bio-blocks to increase deodorization effect
Domestic wastewater measures
Construction Anti-Pollution Measures
Environmental Protection
Three days after introduction
Installation Examples
Channels
Reservoirs
Estuaries
Water purification plant
Water for domestic use
Domestic wastewater
Wastewater treatment plant
Providing technological development products relating
to water purification and environmental conservation, and supporting the improvement of environmental quality.
A multi-contact body, which has a flocculation reaction function that uses the solubility of calcite.
Improvement of eutrophication in the sea, rivers, lakes and ponds etc.
Effective in deodorisation, antibacterial
action and soil amelioration etc.
A circulatory system eco-material that
restores natural purification functions    |
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