Filling matrix for treating landfill leachate and its preparation method and application
A technology of landfill leachate and matrix, applied in chemical instruments and methods, sustainable biological treatment, multi-stage water/sewage treatment, etc., can solve the problems of slow start-up of biochemical packing, easy blockage of packing bed, substandard treatment effect, etc. Achieve the effect of improving hydraulic shock resistance, avoiding clogging and improving biodegradability
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Embodiment 1
[0044] A packing matrix for treating landfill leachate, the preparation process is as follows:
[0045] 1) Select the mine that has been buried in the landfill for 10 to 15 years, and after removing stones with particles larger than 10mm, broken glass, rubber and plastic that has not been fully degraded, wooden sticks, paper and other debris, the ore with a moisture content of 20% The abundance of Pseudomonas, Sphingomonas, Comamonadaceae and Hyphomicrobiaceae in the mineralized garbage was as high as 12.73%, 12.29%, 8.82% and 6.40%.
[0046] 2) Choose an ellipsoid, with a particle size of 13mm and a bulk density of 0.9-1.5g / cm 3 , ceramsite with a porosity of 0.4;
[0047] 3) Mix the mineralized waste and ceramsite at a mass ratio of 1:5, soak and stir in the nitrifying bacteria culture medium for 150 seconds, and mix well; every two days, replace with fresh nitrifying bacteria culture medium and mix well. , completed; the abundances of Pseudoxanthomonas, Sphingomonas, Com...
Embodiment 2
[0050] A packing matrix for treating landfill leachate, the preparation process is as follows:
[0051] 1) Select the landfill that has been buried for 5 to 10 years, and after removing stones, broken glass, incompletely degraded rubber and plastic, wooden sticks, paper and other debris with particles larger than 10mm, the moisture content is 20 to 25%. mineralized waste;
[0052] 2) Choose an ellipsoid, with a particle size of 6-10mm and a bulk density of 0.9-1.5g / cm 3 , ceramsite with a porosity of 0.3;
[0053] 3) Mix the mineralized waste and ceramsite at a mass ratio of 1:7, soak and stir in the nitrifying bacteria culture medium for 100 seconds, and mix well; , completed; the abundances of Xanthomonas, Sphingomonas, Comamonasaceae and Phytomicrobiaceae in the filler matrix were as high as 14.75%, 15.39%, 9.28% and 8.45% respectively; The nitrifying bacteria culture medium is as follows: after mixing 300 mg of ammonium sulfate, 40 mg of sodium bicarbonate, 2 g of dipot...
Embodiment 3
[0056] A packing matrix for treating landfill leachate, the preparation process is as follows:
[0057] 1) Select the mine that has been buried in the landfill for 10 to 20 years, and remove stones with particles larger than 10mm, broken glass, incompletely degraded rubber and plastic, wooden sticks, paper and other sundries, with a moisture content of 36%. Mineralized garbage; the abundance of Pseudomonas, Sphingomonas, Comamonasaceae and Phytomicrobiaceae in the mineralized garbage were 12.73%, 12.29%, 8.82% and 6.40% respectively .
[0058] 2) Choose an ellipsoid, with a particle size of 6-8mm and a bulk density of 81.5g / cm 3 , ceramsite with a porosity of 0.5;
[0059] 3) Mix the mineralized waste and ceramsite at a mass ratio of 1:3, soak and stir in the nitrifying bacteria culture medium for 90 seconds, and mix well; every two days, replace with fresh nitrifying bacteria culture medium and mix well. , completed; the abundances of Pseudoxanthomonas, Sphingomonas, Comam...
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