Boczkaj Grzegorz, Gągol Michał, Klein Marek, Przyjazny Andrzej
Department of Chemical and Process Engineering, Faculty of Chemistry, Gdańsk University of Technology, Gdansk, Poland.
Department of Chemical and Process Engineering, Faculty of Chemistry, Gdańsk University of Technology, Gdansk, Poland; Department of Polymer Technology, Gdańsk University of Technology, Faculty of Chemistry, Gdansk, Poland.
Ultrason Sonochem. 2018 Jan;40(Pt A):969-979. doi: 10.1016/j.ultsonch.2017.08.032. Epub 2017 Sep 15.
Utilization of cavitation in advanced oxidation processes (AOPs) is a promising trend in research on treatment of industrial effluents. The paper presents the results of investigations on the use of hydrodynamic cavitation aided by additional oxidation processes (O/HO/Peroxone) to reduce the total pollution load in the effluent from the production of bitumens. A detailed analysis of changes in content of volatile organic compounds (VOCs) for all processes studied was also performed. The studies revealed that the most effective treatment process involves hydrodynamic cavitation aided by ozonation (40% COD reduction and 50% BOD reduction). The other processes investigated (hydrodynamic cavitation+HO, hydrodynamic cavitation+Peroxone and hydrodynamic cavitation alone) ensure reduction of COD by 20, 25 and 13% and reduction of BOD by 49, 32 and 18%, respectively. The results of this research revealed that most of the VOCs studied are effectively degraded. The formation of byproducts is one of the aspects that must be considered in evaluation of the AOPs studied. This work confirmed that furfural is one of the byproducts whose concentration increased during treatment by hydrodynamic cavitation alone as well as hydrodynamic cavitation aided by HO as an external oxidant and it should be controlled during treatment processes.
在高级氧化工艺（AOPs）中利用空化作用是工业废水处理研究中一个很有前景的趋势。本文介绍了利用附加氧化工艺（O/HO/过氧酮）辅助的水力空化来降低沥青生产废水总污染负荷的研究结果。还对所有研究过程中挥发性有机化合物（VOCs）含量的变化进行了详细分析。研究表明，最有效的处理工艺是臭氧辅助的水力空化（化学需氧量（COD）降低40%，生化需氧量（BOD）降低50%）。所研究的其他工艺（水力空化+HO、水力空化+过氧酮和单独的水力空化）分别使COD降低20%、25%和13%，BOD降低49%、32%和18%。本研究结果表明，所研究的大多数VOCs都能有效降解。副产物的形成是评估所研究的AOPs时必须考虑的方面之一。这项工作证实，糠醛是其中一种副产物，其浓度在单独的水力空化以及以HO作为外部氧化剂辅助的水力空化处理过程中增加，在处理过程中应加以控制。
