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Integration of submerged microfiltration and cold plasma for high-strength livestock excreta.
Journal of Hazardous Materials ( IF 13.6 ) Pub Date : 2020-06-22 , DOI: 10.1016/j.jhazmat.2020.123280
Hyeonmin An 1 , Jae-Cheol Lee 1 , Rumi Park 1 , Hyun-Woo Kim 1
Affiliation  

Numerous biological treatment techniques have been studied for better management of high-strength livestock urine and manure (LUM) but it is still challenging. To gain an advanced option for LUM management, this study proposes a physicochemical process combining microfiltration (MF) and cold plasma (CP). Experimental design applying single CP, single MF, and the integrated system coupling CP and MF (CP + MF) evaluates the performances of the configurations while reducing hydraulic retention time (HRT) from 3 d to 1 d. Results demonstrate that the CP + MF can maximize the removal efficiencies of total nitrogen (72.4 %), total phosphorus (57.8 %), NH4-N (73.3 %), turbidity (99.1 %), dissolved organic carbon (71.3 %), suspended solids (98.7 %) at HRT 3 d. It was verified that CP, even at the lowest HRT (1 d), significantly reduces membrane resistance (0.4 × 1014 m−1) compared to the control (1.5 × 1014 m−1) which leads to lower transmembrane pressure (TMP, 45.6 kPa) and inclined flux (4.4 L/m2/h) than those of the control (45.6 kPa TMP and 2.2 L/m2/h). These results contribute to the advanced treatment of LUM with a cost-effective and environmentally friendly strategy via technical convergence.



中文翻译:

淹没式微滤和冷血浆的整合,用于高强度牲畜排泄物。

为了更好地管理高强度家畜的尿和粪便(LUM),已经研究了许多生物处理技术,但是这仍然具有挑战性。为了获得LUM管理的高级选择,本研究提出了一种将微滤(MF)和冷血浆(CP)相结合的物理化学过程。使用单个CP,单个MF以及CP和MF耦合的集成系统(CP + MF)进行的实验设计可以评估配置的性能,同时将水力停留时间(HRT)从3 d减少到1 d。结果表明,CP + MF可以最大限度地提高总氮(72.4%),总磷(57.8%),NH 4的去除效率-N(73.3%),浊度(99.1%),溶解的有机碳(71.3%),HRT 3 d处的悬浮固体(98.7%)。可以确认,CP,即使在最低HRT(1 d),显著降低膜电阻(0.4×10 14-1相比于对照(1.5×10)14-1),其导致较低的跨膜压力(TMP ,45.6千帕)和倾斜的通量(4.4 L /米2比对照(45.6千帕TMP和2.2升/米/小时)2 /小时)。这些结果通过技术融合,以具有成本效益和环境友好的策略促进了LUM的先进治疗。

更新日期:2020-07-10
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