All nutrients, the highest values were recorded in MRS due to surface water inflow that brought nutrients from the surrounding agricultural areas (Meesukko et al. 2007; Stanley et al. 2003) and the leachates of municipal wastes from waste disposal sites and sanitary landfills (Bennett 1998).
The highest concentration of NO2−-N was only 5.10 mg L−1 in the leachate of R6.
This implies that the leachate of barley grains is more biodegradable than that of peanut shells.
The VFAs produced in the leachate of such stage one fermenters occurs at pH 5.5 to 6.0.
This paper describes the ability of three natural geologic materials (i.e., pumiceous tuffs, partly-weathered volcanic ashes and coastal marine sediments) to sequester As and B from aqueous solutions and the actual leachate of a hydrothermally altered rock.
The leachate pH values of the three simulated recirculated landfills (R4, R5, and R6) were all higher than CL, especially for R6 (the ratio of MSWI BA to fresh refuse was 1 : 5 (V : V)), and the leachate pH value of R6 increased linearly from day 119 to day 144 and finally kept stable at 7.57 7.74.
It is also evident that heavy metal concentrations in the leachates of AAC and autoclaved water are far lower than recommended in the GB5085.3-2007.
For these samples, the BOD5/COD ratios of the leachates of woodchips, peanut shells, and barley grains were 0.15, 0.49, and 0.42, respectively.
The vermicompost (100 kg) was flushed with 50 L of water and the leachate (vermiwash) was collected.
Thus, the release levels of Se, Mo, Cd, Pb and chloride in the leachate form of EAFD exceeded the legal limit values, and both EAFDs were classified as hazardous wastes.
