FIELD: chemistry.
SUBSTANCE: carboxyl group carrier used is hydrolysed lignin with moisture content of 0-30% with particle size of 1-2 mm.
EFFECT: use of the disclosed sorbent enables to localise toxic rocket fuel at spill sites owing to rapid binding of unsymmetrical dimethylhydrazine with the sorbent without forming toxic by-products, and also enables to recycle hydrolysis wastes using lignin as a sorbent.
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