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<p>The study of water quality in private wells within the Kyiv region has evaluated the feasibility of using a gravity-fed adsorption filter for producing potable water. The filter medium consists of a natural adsorbent, zeolite (clinoptilolite), along with two types of activated carbon: Filtrasorb 300 and biochar, the latter synthesized through an innovative process from renewable plant-based feedstock. Experimental results obtained under irregular household filtration dynamics demonstrate a significant influence of biosorption on water purification. The filter effectively controls water color and turbidity, and efficiently removes total organic carbon, as well as nitrogen and iron compounds, but has a limited effect on overall salt concentration. The operational lifespan of the dual-layer medium, comprising zeolite and activated carbon, ranges from three to four weeks and is governed by microbial activity and the formation of mineral-biological purification films within the filtration layers, which correspond to the composition of the influent water. The gravity-fed, non-pressurized filter is recommended for temporary individual or group use in field conditions, as well as for short-term periods when access to drinking water of sanitary quality is unavailable due to anthropogenic or other force majeure circumstances.</p>

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Investigating the Quality of Groundwater and Its Purification Using Gravity Filtration and Natural Adsorbents

  • 期刊论文

  • 发表日期：

    2025年6月23日

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  • O. Yu. Kulishenko,
  • S. V. Grechanik,
  • S. K. Smolin,
  • N. A. Klymenko,
  • V. T. Ostapenko

摘要

The study of water quality in private wells within the Kyiv region has evaluated the feasibility of using a gravity-fed adsorption filter for producing potable water. The filter medium consists of a natural adsorbent, zeolite (clinoptilolite), along with two types of activated carbon: Filtrasorb 300 and biochar, the latter synthesized through an innovative process from renewable plant-based feedstock. Experimental results obtained under irregular household filtration dynamics demonstrate a significant influence of biosorption on water purification. The filter effectively controls water color and turbidity, and efficiently removes total organic carbon, as well as nitrogen and iron compounds, but has a limited effect on overall salt concentration. The operational lifespan of the dual-layer medium, comprising zeolite and activated carbon, ranges from three to four weeks and is governed by microbial activity and the formation of mineral-biological purification films within the filtration layers, which correspond to the composition of the influent water. The gravity-fed, non-pressurized filter is recommended for temporary individual or group use in field conditions, as well as for short-term periods when access to drinking water of sanitary quality is unavailable due to anthropogenic or other force majeure circumstances.