Aminated peat (termed PG-Peat) produced using polyethylenimine and glycidyltrimethylammonium chloride was used for the removal of sulphate from real acid mine drainage (AMD) in batch and column mode sorption studies. In the batch tests, the highest sulphate removal capacity achieved was 125.7 mg/g. PG-Peat was efficient and rapid in sulphate removal from AMD even at low temperatures (2–5 °C), achieving equilibrium within a contact time of 30 min. The PG-Peat column treating real AMD showed even higher sulphate uptake capacity (154.2 mg SO₄²⁻/g) than the batch sorption studies. The regenerative and practical applicability of PG-Peat was also tested in column set-ups using synthetic sulphate solutions (at pH 5.8 and pH 2.0). The sulphate uptake capacity obtained was higher in column mode when the solutions were treated at acidic pH (2.0) compared to pH 5.8. This could be attributed to the presence of cationized amine groups on PG-Peat under acidic pH conditions. Almost complete sulphate desorption was achieved with NaCl in the column that treated synthetic sulphate solution at pH 5.8, while the lowest desorption rates were observed in the column that treated acidic synthetic sulphate solution (pH 2).

使用聚乙烯亚胺和缩水甘油基三甲基氯化铵生产的胺化泥炭（称为PG-泥炭）用于分批和柱模式吸附研究中从真实酸性矿井排水（AMD）中去除硫酸盐。在分批测试中，达到的最高硫酸盐去除能力为125.7 mg / g。PG-Peat即使在低温（2–5°C）下也能高效，快速地从AMD去除硫酸盐，在30分钟的接触时间内即可达到平衡。处理实际AMD的PG-Peat色谱柱显示出更高的硫酸盐吸收能力（154.2 mg SO ₄ ^2-/ g）。还使用合成硫酸盐溶液（pH 5.8和pH 2.0）在色谱柱设置中测试了PG-Peat的再生性和实用性。当在酸性pH（2.0）下处理溶液时，与pH 5.8相比，在柱模式下获得的硫酸盐吸收能力更高。这可能归因于在酸性pH条件下PG-Peat上存在阳离子化胺基。用NaCl处理pH为5.8的合成硫酸盐溶液时，几乎可以完成硫酸盐的解吸，而处理酸性合成硫酸盐（pH 2）的色谱柱中，则观察到了最低的解吸速率。