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<p>The problem of processing and utilization of sludge sediments formed at biological treatment facilities is a pressing issue. One of the safe methods of solving it is fast pyrolysis, which allows you to recycle this waste into biochar. The resulting biochar can be used as an additive to the soil, a recultivant, but it has not been widely used at present. Currently, the most widely used black pigment in industry is carbon black, which is considered harmful to public health: pigments are carcinogenic and generate many toxic residues that pollute the air when released into the atmosphere. The present research is aimed at obtaining black pigment as a result of processing sewage sludge by fast pyrolysis. Studies of the properties of biochar obtained by fast pyrolysis of sewage sludge have shown the prospects for its use in various fields of industry, in particular, as a black pigment in paints and varnishes. In terms of technical characteristics, it is comparable to a typical of red iron oxide pigment, which has a more complex production process. Additional modification of biochar by heat treatment makes it possible to improve its painting and technical properties and, in the future, will allow it to be used as a black pigment.</p>

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Investigation of the properties of biochar obtained by fast pyrolysis of sewage sludge for use as a pigment

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Mansurovna Guzeliia Bikbulatova,
  • Nikolaevich Andrey Grachev,
  • Andreyevich Sergey Zabelkin,
  • Saidovich Farid Sharifullin,
  • Valerievich Alexey Sorokov ,
  • Irshatovna Almira Valiullina ,
  • Raisovna Aigul Valeeva ,
  • Alexandrovich Alexander Makarov ,
  • Nikolaevich Vladimir Bashkirov ,
  • Maratovna Rimma Khaziakhmedova

摘要

The problem of processing and utilization of sludge sediments formed at biological treatment facilities is a pressing issue. One of the safe methods of solving it is fast pyrolysis, which allows you to recycle this waste into biochar. The resulting biochar can be used as an additive to the soil, a recultivant, but it has not been widely used at present. Currently, the most widely used black pigment in industry is carbon black, which is considered harmful to public health: pigments are carcinogenic and generate many toxic residues that pollute the air when released into the atmosphere. The present research is aimed at obtaining black pigment as a result of processing sewage sludge by fast pyrolysis. Studies of the properties of biochar obtained by fast pyrolysis of sewage sludge have shown the prospects for its use in various fields of industry, in particular, as a black pigment in paints and varnishes. In terms of technical characteristics, it is comparable to a typical of red iron oxide pigment, which has a more complex production process. Additional modification of biochar by heat treatment makes it possible to improve its painting and technical properties and, in the future, will allow it to be used as a black pigment.