大理石加工废水(MPWW)中的悬浮物有可能污染接收介质。同样,洗涤剂生产废水(DPWW)在排放前需要处理,因为它们包括表面活性剂和其他。在各种工程解决方案中,浮选及其修改对于分离目的是常见的。通过改变一些捕收剂和起泡剂化学品的表面张力来提高浮选性能,使用表面活性剂。洗涤剂是重要的表面活性剂之一,它们可以在浮选中同时充当起泡剂和捕收剂。因此,这项研究的目的是确定DPWW与MPWW共浮选的有效性。将两种流出物以不同比例混合,并将分散空气(DISP)和丹佛(DEN)浮选共处理应用于混合物。体积比,研究了时间和空气流量对处理性能的影响。浊度,固体,COD,COD当浮选应用于混合物时,磷酸盐的去除在不同的水平上实现。在90%MPWW-10%DPWW混合物下实现最高处理性能。DEN系统的10分钟浮选时间和2L.min-1空气流速,建议DISP系统为20min和6L.min-1。在这些条件下浑浊,SS,COD,COD磷酸盐和碱度残留物(和去除效率)为2400NTU(82%),1720mg。L-1(89%),313.6毫克。L-1(10%),20毫克。L-1(20%)和600mg。DEN系统中的L-1CaCO3(92%),分别。然而,在DISP系统中,在相同的条件下,最终值1880NTU(86%),1540mg。L-1(91%),262毫克。L-1(17%),21毫克。L-1(20%)和470mg。L-1(94%),分别。最高的SludgeSS浓度增加至19300mg。L-1在90%-10%的混合物中。在所有样品中,获得了脱水污泥。通过这项研究,建议对这两种流出物进行共浮选。在可持续发展目标中,这种方法将取代起泡剂化学品的使用。通过浮选改性可以进一步提高工艺性能,并且可以进一步研究开发技术。
Suspended solids in the marble processing wastewater (MPWW) have the potential to pollute receiving media. Likewise, detergent production wastewater (DPWW) needs treatment prior to discharge as they include surfactants and others. Flotation and its modifications are common for separation purposes in various engineering solutions. To increase flotation performance by changing the surface tension some collector and frother chemicals, surfactants are utilized. Detergents are among important surfactants and they may act as both frother and collector in flotation. Therefore, the purpose of this study was to determine the effectiveness of DPWW in co-flotation with MPWW. Two effluents were mixed at varying ratios and dispersed air (DISP) and Denver (DEN) flotation co-treatment were applied to the mixtures. Volume ratio, time and air flow rate on treatment performance were investigated. Turbidity, solids, COD, phosphate removals were achieved at varying levels when the flotation was applied to the mixture. The highest treatment performance was achieved at 90%MPWW-10%DPWW mixture. 10 min flotation time and 2 L min-1 air flow rate for the DEN system, and 20 min and 6 L min-1 for the DISP system were recommended. Under these conditions turbidity, SS, COD, phosphate and alkalinity residuals (and removal efficiencies) were 2400 NTU(82%), 1720 mg.L-1(89%), 313.6 mg.L-1(10%), 20 mg.L-1(20%) and 600 mg.L-1CaCO3(92%) in the DEN system, respectively. Whereas, in the DISP system, under the same conditions, final values of 1880 NTU(86%), 1540 mg.L-1(91%), 262 mg.L-1(17%), 21 mg.L-1(20%) and 470 mg.L-1(94%) were obtained, respectively. The highest SludgeSS concentration increased up to 19300 mg.L-1 in the 90%-10% mixture. In all samples, dewaterable sludge was obtained. By this study, co-flotation of these two effluents was recommended. Within SDGs, this approach will replace frother chemical usage. The process performance can further be enhanced via flotation modifications and technology can be developed as further study.