Applying watered honeycomb briquette ash to stabilize lead in lead contaminated soil
A technology of lead-contaminated soil and briquette ash, applied in the restoration of polluted soil, recycling technology, solid waste removal, etc., can solve the problems of increasing soil pH and electrical conductivity, reducing soil lead availability and mobility, etc.
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[0018] The method of the present invention utilizing water-washed briquette ash to stabilize the lead in the lead-contaminated soil can be described in detail with a specific example, and its concrete steps are as follows:
[0019] 1 Take 20g of blocky ash (excluding powdery bottom ash) formed after burning honeycomb coal, crush it with a wooden stick, pass through a 2mm sieve, and mix evenly.
[0020] 2Put the crushed briquette ash and 60g of water into a plastic bottle, cover the bottle cap, vibrate on a shaker for 5 minutes, filter with a sieve with a pore size less than 0.01mm, then dry the ash at 80°C and mix uniform.
[0021] 3 Weigh 8g of dried ash, mix it with lead-contaminated soil equivalent to 400g of dried soil, add distilled water to adjust the water content to 25%, irrigate with distilled water the next day to keep the water content at 25%, and cultivate for 60 days.
[0022] For example, for a certain lead-contaminated soil, apply water-washed briquette ash at ...
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