Restoration agent for heavy metal contaminated soil
A soil remediation agent and heavy metal technology, applied in the field of soil remediation, can solve the problems of incomplete and complete elimination of soil heavy metals, etc., and achieve the effect of obvious improvement of soil conditions and mild action conditions
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Examples
Embodiment 1
[0060] Take soil samples polluted by heavy metals. After testing, the lead content in the soil is 380mg / kg; the chromium content is 282mg / kg; the mercury content is 0.85mg / kg, and the cadmium content is 0.78mg / kg;
[0061] Get the soil remediation agent according to the ratio of 50 grams of soil remediation agent per 1000 grams of soil sample;
[0062] Add the following raw materials to the soil sample: chitosan, bentonite, Dunaliella, citric acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed shell, moss aspergillus, betel nut wood chips, palm tree chips;
[0063] The parts by weight of each raw material are as follows:
[0064]
[0065] Mix with soil samples and keep for 48 hours;
[0066] Chitosan used in the present invention, enzyme and microbial bacterium powder are all derived from commercially available;
[0067] Dunaliella is dried and pulverized algal powder with a water content of about 3%;
[0068] Corn cobs are dried and crushed granules ...
Embodiment 2
[0103] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove heavy metals in the soil sample, the difference is that the parts by weight of the soil remediation agent etc. are different;
[0104]
[0105] The compound enzyme preparation is composed of laccase, thioesterase and phytase;
[0106] The enzyme activity of laccase is 5.4×10 5 U / g, the enzyme activity of thioesterase is 18.3×10 5 U / g, the enzyme activity of phytase is 8.9×10 5 U / g; the ratio of parts by weight of laccase, thioesterase and phytase is 2:4:3;
[0107] Compound microbial agent 0.005;
[0108] The active ingredients of the above-mentioned composite microbial agent are composed of Pseudomonas putida powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, Li Composed of Trichoderma fungus powder;
[0109] The weight ratio of the above-mentioned Pseudomonas putida bacterial powder,...
Embodiment 3
[0118] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove heavy metals in the soil sample, the difference is that the parts by weight of the soil remediation agent etc. are different;
[0119]
[0120] The compound enzyme preparation is laccase, thioesterase and phytase;
[0121] The enzyme activity of laccase is 5.4×10 5 U / g, the enzyme activity of thioesterase is 18.3×10 5 U / g, the enzyme activity of phytase is 8.9×10 5 U / g; the ratio of parts by weight of laccase, thioesterase and phytase is 1:2:1;
[0122] Composite microbial agent 0.048;
[0123] The active ingredients of the complex microbial agent are composed of Pseudomonas putida powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, Reesei wood Composed of mold powder;
[0124] The weight ratio of Pseudomonas putida bacterial powder, Pseudomonas fluorescens bacterial powder, salt-tolera...
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