###### Abstract
Therefore, membrane technology could be an encouraging technique for the elimination of VOCs from contaminated water sources. On the other hand, the availability of an effective and low-cost membrane unit is required to achieve VOCs' amount reduction [15]. In recent years, electrochemical (EC) methods have started to be used for wastewater treatment. EC processes possess some advantages over the above-described technologies, such as the use of fewer amounts of added chemicals, simple installation, lower secondary toxicants occurrence, odor and/or pigment removal, and shorter residence time [16]. Electrocoagulation and electrofoltation are the most widespread electrochemical wastewater treatment processes, which capitalize on the simultaneous generation of metal hydroxide and hydrogen microbubbles at the anode and cathode, respectively [17; 18]. Dissolved metal ions from the anode form metal hydroxide, which grows into large flocs that act as highly effective coagulating agents for capturing contaminants, while the hydrogen bubbles carry the precipitated solids to the surface of treated water, thus enabling simple separation of contaminants. Dissolved organic compounds undergo electrochemical oxidation/reduction in the vicinity of electrodes and are captured by hydroxide flocs [17]. To ensure that the treatment process is successful, safe disposal limits must be respected; in addition to traditional parameters such as toxicity, total organic carbon content (TOC), chemical oxygen demand (COD), biological oxygen demand (BOD), turbidity, etc., the individual identification of the industrial wastewater contaminants can be realized via advanced analytical methods allowing the specification of individual contaminants, particularly through separation and appropriate spectrometric detection. Within the analytical method, the sample preparation step is very time-consuming and for par trace-level VOCs present in a complex matrix, it is highly challenging due to the difficulty [19]. This means that sample preparation is a crucial and unavoidable part of the analytical method for the detection of low-levelanalytes in multicomponent matrices [20]. Sample pretreatment techniques such as liquid-liquid extraction (LLE) [21], solid-phase extraction (SPE) [22], liquid-phase microextraction (LPME) [23], and solid-phase microextraction (SPME) [24] have been exploited for the isolation of VOCs from environmental samples. However, there are several disadvantages to these approaches [25]. In the case of industrial wastewater, the purge and trap method is the first choice for the pre-concentration and analysis of VOCs [26; 27]. Apart from sensitivity, purge and trap has the advantages of precision and the possibility of automation. The drawbacks are elaborated instrumentation, water vapor which is produced during the extraction and could cause interferences, use of large amounts of cryogen, trap contaminations, especially in highly polluted samples such as industrial wastewater, and a long time of analysis. For the determination of VOCs, headspace techniques are more suited. In static headspace sampling (SHS), the sample is sealed in a gas-tight vial with a septum, and after the equilibrium, headspace vapor is injected to the GC by a gastight syringe [28]. The advantage of HS techniques is in the direct analysis of the VOCs without any interference from the sample matrix; therefore, the matrix effects are reduced. As the entire analysis runs in a closed system, there is the potential to reach high reproducibility. In this study, a new electrochemical treatment technology was introduced for the industrial wastewater treatment procedure. The proposed wastewater processing technology uses a proprietary approach to the electrochemical introduction of certain metal consumables into the wastewater and to capture (electrochemically transformed) organic pollutants of the wastewater within a metal hydroxide matrix.