In this study, the suitability of natural peat (Nat-Peat) and HCl-modified peat (M-Peat) as a sorbent for purification of mining water was evaluated in two different small-scale pilot systems: a continuous stirred tank reactor (CSTR) and a horizontal flow filter (HFF). The effect of process parameters (peat type, peat dose, mixing time, mixing intensity) on metal (metalloid) removal in the CSTR system was also investigated. In the CSRT, Nat-Peat achieved higher removal of Ni (<80%) and As (∼61%) than M-Peat (72% and 26% for Ni and As, respectively). In the HFF, Nat-Peat achieved slightly lower maximum removal of Ni (<96%) than M-Peat (<98%) and higher removal of As and Sb (<87% and 8%) than M-Peat (<35% and 7%). Thus, chemical modification (HCl) of peat did not improve its affinity for metal and metalloids. Among the process parameters studied, peat dose exerted the strongest effect on residual concentrations of Ni, As and Sb. Higher removal of Ni and As was achieved in treatment combinations involving high peat dose (2 g/L), mixing time (60 min) and mixing intensity (300 rpm), but the effect of increasing level of these factors was not linear. This study showed that peat can be a viable sorbent material in CSTR systems (followed by sedimentation) if sorbent particle removal can be improved. Use of peat in HFF systems is not viable, due to its inability to cope with large water volumes.

在这项研究中，在两个不同的小型中试系统中评估了天然泥炭（Nat-Peat）和HCl改性泥炭（M-Peat）作为净化矿井水的吸附剂的适用性：连续搅拌釜反应器（CSTR ）和水平流过滤器（HFF）。还研究了工艺参数（豌豆类型，泥煤剂量，混合时间，混合强度）对CSTR系统中金属（准金属）去除的影响。在CSRT中，Nat-Peat的Ni（<80％）和As（〜61％）的去除率高于M-Peat（Ni和As分别为72％和26％）。在HFF中，Nat-Peat的Ni（<96％）的最大去除率略低于M-Peat（<98％），As和Sb的去除率（<87％和8％）比M-Peat（<35） ％和7％）。因此，泥炭的化学改性（HCl）并未提高其对金属和准金属的亲和力。在研究的工艺参数中，泥炭剂量对残留的Ni，As和Sb的影响最大。在涉及高泥炭剂量（2 g / L），混合时间（60分钟）和混合强度（300 rpm）的处理组合中，实现了较高的镍和砷去除率，但是增加这些因子的水平不是线性的。这项研究表明，如果可以改善吸附剂的去除效果，泥炭在CSTR系统中是可行的吸附剂材料（随后是沉降）。由于无法处理大量水，在HFF系统中使用泥炭是不可行的。但是增加这些因素的影响不是线性的。这项研究表明，如果可以改善吸附剂的去除效果，泥炭在CSTR系统中是可行的吸附剂材料（随后是沉降）。由于无法处理大量水，在HFF系统中使用泥炭是不可行的。但是增加这些因素的影响不是线性的。这项研究表明，如果可以改善吸附剂的去除效果，泥炭在CSTR系统中是可行的吸附剂材料（随后是沉降）。由于无法处理大量水，在HFF系统中使用泥炭是不可行的。