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secondary pollution
In order to eliminate secondary pollution caused by municipal solid waste (MSW) incineration, a MSW gasification and melting process is proposed.
      
The bottom sediments of the reservoir are demonstrated to be still no source of secondary pollution.
      
These factors has affected the area waterlogging; the surface and subsurface water regime, their nutrition, discharge, and secondary pollution.
      
The hard skeleton of bottom deposits contains a large store of heavy metals that can be a source of the secondary pollution of water masses.
      
The seasonal variations and secondary pollution characteristics of fine particles during the sampling periods were discussed with meteorological factors.
      
During the continuous high temperature period in summer, both the concentrations and fractions of secondary aerosol components in PM2.5 were highly elevated, suggesting severe secondary pollution again.
      
We also developed a technological system for the treatment of dump drainage waters by reagent and baromembrane methods that eliminates secondary pollution of the environment by purification process wastes.
      
Having the advantages of low cost raw material, big adsorbing capacity, no secondary pollution, etc., algae may be used to treat industrial water containing heavy metals.
      
Strictly managing and controlling the sources of primary and secondary pollution sources were favorable for lake eutrophication control and improvement of water quality.
      
The inflow of dissolved nutrients from the Elbe results in an increase of the trophic niveau and a "secondary pollution" in the outer regions of the estuary.
      
While the floodplains acted as a buffer to the dispersal of metals straight through the catchment, metals are still being released hundreds of years later as the floodplains are eroded and this secondary pollution of the river is a long-term problem.
      
Secondary pollution occurs because Fe:P values are below the threshold.
      
Problem of preventing secondary pollution of reservoirs
      
Furthermore, the product, Ecocement had to be safe when used without causing any secondary pollution.
      
This allows the solution to be recovered without generating any secondary pollution.
      
Therefore, they died and vanished, forming secondary pollution in local marine environment.
      
The disposal can not produce secondary pollution and lose the healthy mineral components.
      
The operation parameters are difficult to be controlled, the flue gas of incineration will also leads to secondary pollution to the air.
      
 

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