Decontamination Process Research Articles

Vermiremediation of heavy metals (HMs)-contaminated agricultural land: synergistic changes in soil enzyme activities and earthworm's growth parameters.

In this investigation the heavy metals (Cu, Zn, Mn, Cr and Ni) remediation potential of Eisenia fetida was studied in the crude oil polluted soil. The potential of E. fetida was evaluated based on the decrease in concentrations of Cu, Zn, Mn, Cr and Ni, and improvement in the soil enzyme activities at the end of 90 days of experimental trials. Moreover, soil health quality, inter-relationship between the enzyme activities and the growth parameters of E. fetida and synergistic relation among the enzyme activities were also evaluated through G-Mean and T-QSI indices, chord plot analysis and principal component analysis (PCA) to confirm the performance of E. fetida during vermiremediation. The results revealed that the soil treated with E. fetida showed a reduction in the concentration of Cu, Zn, Mn, Cr and Ni by 17.4% 19.45%, 9.44%, 23.8% and 9.6% respectively by end of the experimental trials. The cellulase, amylase, polyphenol oxidase, peroxidase, urease, dehydrogenase and catalase activities in the E. fetida-treated soil were enhanced by 89.83%, 99.17%, 142%, 109.9%, 92.9%, 694.3% and 274.5% respectively. The results of SEM-EDS revealed enhancement in the O, K, Na, Mg and P content by 62.36%, 96.2%, 97.9%, 93.7% and 98.2% respectively by the end of the experimental trial. The G-Mean and T-QSI indices also confirmed the improvement in soil enzyme activities thereby indicating the positive influence of E. fetida on soil decontamination process. The chord plot indicated the interrelationship between the earthworm's growth parameters and enzyme activities of the soil as indicated by the high linkage between the nodes. Finally, the PCA confirmed the negative effect of the heavy metals on the soil enzyme activities and synergistic interrelationship between the enzyme activities during the vermiremediation process. Thus, this study demonstrated the changes in the soil enzyme activities and their interconnected influences during vermiremediation of crude oil sourced heavy metals from polluted soil.

Monitoring contamination of hazardous drug compounding surfaces at hospital pharmacy departments. A consensus Statement. Practice guidelines of the Spanish Society of Hospital Pharmacists (SEFH)

ObjectiveTo establish a series of recommendations based on available evidence for monitoring surface contamination in the areas devoted to compounding hazardous drugs in pharmacy departments. MethodBased on a literature search in the Medline and Embase databases (search period: January 2009 to July 2019), as well as on a review of standards and recommendations issued by different healthcare organines a committee of experts from the Spanish Society of Hospital Pharmacists defined a series of safe practices for handling hazardous drugs and monitoring compounding work surfaces. Recommendation decisions were adopted by consensus among the members of the expert group, considering the recommendations reviewed, the monitoring situation in Spanish hospital departments, and the associated costs. ResultsTen recommendations were formulated, structured into eight sections. They include aspects related to the drugs to be monitored; the areas to be monitored; when samples should be taken; risk determination and preparation of a sampling protocol; analytical techniques; contamination thresholds; and design of an action plan based on the sampling and decontamination results obtained. ConclusionsSurface monitoring allows hazardous drugs detection and evaluation of the effectiveness of current protocols for the safe handling of such drugs in hospital pharmacy departments. The evaluation should include an analysis of the efficacy of engineering controls, work practices and cleaning and decontamination processes.

Investigation on decontamination kinetics of metallic radionuclides in irradiated graphite by chlorination roasting

Irradiated graphite used as moderator and reflector material in reactor core in nuclear industry is an important radioactive waste after reactor decommissioning. Treatment of irradiated graphite waste has been a challenge for IAEA member states. Chlorination roasting was proposed in order to remove the metallic radionuclides in irradiated graphite waste. The promising advantages of the proposed method include that the category of graphite waste can be reduced with near-zero carbon emission, and it can lead to potentially the recycling of irradiated graphite and metallic radionuclides. The decontamination kinetics of metallic radionuclides was evaluated based on a lab-scale tube furnace combined with density functional theory (DFT). 56Fe ions were implanted into nuclear graphite to simulate metallic radionuclides derived by neutron radiation. Decontamination efficiencies of Fe at 900, 1000, 1100, and 1200 °C for the retention time of 210 min were 42.6%, 81.6%, 94.4%, and 96.7%, respectively. Fe could volatilize from graphite in the form of complex metal chloride with retaining a large amount of graphite inert matrix. The decontamination process was described by the second order reaction model. Through DFT evaluation, Fe was chlorinated via Fe → FeCl → FeCl2 reaction pathway. This decontamination process is efficient, cost-effective, and reliable, which provide a valuable contribution to managing irradiated graphite.

Single-use accessories and endoscopes in the era of sustainability and climate change-A balancing act.

Gastrointestinal (GI) endoscopy is among the highest waste generator in healthcare facilities. The major reasons include production of large-volume non-renewable waste, use of single-use devices, and reprocessing or decontamination processes. Single-use endoscopic accessories have gradually replaced reusable devices over last two decades contributing to the rising impact of GI endoscopy on ecosystem. Several reports of infection outbreaks with reusable duodenoscopes raised concerns regarding the efficacy and adherence to standard disinfection protocols. Even the enhanced reprocessing techniques like double high-level disinfection have not been found to be the perfect ways for decontamination of duodenoscopes and therefore, paved the way for the development of single-use duodenoscopes. However, the use of single-use endoscopes is likely to amplify the net waste generated and carbon footprint of any endoscopy unit. Moreover, single-use devices challenge one of the major pillars of sustainability, that is, "reuse." In the era of climate change, a balanced approach is required taking into consideration patient safety as well as financial and environmental implications. The possible solutions to provide optimum care while addressing the impact on climate include selective use of disposable duodenoscopes and careful selection of accessories during a case. Other options include use of disposable endcaps and development of effective high-level disinfection techniques. The collaboration between the healthcare professionals and the manufacturers is paramount for the development of environmental friendly devices with low carbon footprint.

Optimal hybrid artificial intelligence models for predicting the adsorptive removal of dyes and phenols from aqueous solutions using an amine-functionalized graphene oxide/layered triple hydroxide nanocomposite

Water pollution is a serious environmental problem with a significant negative impact on human health and the ecosystem. Adsorption is an attractive process for water decontamination. Developing artificial intelligence models capable of predicting the adsorption performance of newly developed materials could save huge amounts of resources and efforts. In the present study, a novel polyethyleneimine/graphene oxide/layered triple hydroxide (PEI/GO/LTH) nanocomposite was synthesized, characterized, and applied to adoptively remove harmful phenolic (bisphenol A) and azo dye (acid red 1) from wastewater samples. The results revealed that the PEI/GO/LTH nanocomposite is highly effective in removing these two pollutants. The adsorption isotherms and kinetics of these two pollutants are best fitted by the Langmuir isotherm and pseudo-second-order models, respectively. Additionally, the synthesized nanocomposite is easily and highly regenerable with an insignificant loss in performance when repeatedly used. Besides the above investigations, the present study also employs support vector machines (SVM) and Bayesian optimization as tools for predicting the adsorptive removal of acid red 1 (AR1) dye and bisphenol A (BPA) from contaminated water samples by the synthesized PEI/GO/LTH nanocomposite. The models achieved promising results as the correlation coefficients, during the testing phase, reached 97.3 and 96.6 % for the AR1 and BPA data using BO-SVM models, respectively.

Accelerated removal of naproxen in the iron-based peracetic acid activation system by chloride ions: Enhancement of reactive oxidative species via the formation of iron-chloride complexes

Iron-based PAA activation process is a promising advanced oxidation process for water decontamination which depends on Fe(II) as the main reactive site for PAA activation, resulting in various reactive oxidative species (ROSs) generation. For practical application, the impact of water matrix chloride ion (Cl−) on ROSs production and contaminants removal should be carefully considered. In this study, it’s found that the introduction of Cl− (0.1–10 mM) could significantly enhance the reaction rate of the rapid stage (kobs1) up to 2.15 times at the initial pH of 4.25 in the Fe(II)/PAA system. Further studies demonstrated that the improved removal capacity of NAP resulted from Cl− induced R-O• generation as indicated by the exposure dose of R-O• increasing from 7.74 × 10−11 M•s to 1.44 × 10−10 M•s, rather than chlorine-containing radicals’ generation. DFT calculation results suggested that the formed Fe(II)-Cl− complexes could easily activate PAA to generate more ROSs for NAP removal. Moreover, Fe(II)/PAA treatment can alleviate the biological toxicity of pollutants via both the Escherichia coli test and toxicity assessment. The obtained new knowledge manifested that Cl− can boost ROSs generation and conversion in iron-based PAA systems, providing guidance for the efficient decontamination of chlorine-containing sewage with PAA-based AOPs.

Molten salts for efficient removal of radioactive contaminants from stainless steel surface: Mechanisms and applications

Here, we have demonstrated an innovative decontamination strategy using molten salts as a solvent to clean stubborn uranium contaminants on stainless steel surfaces. The aim of this work was to investigate the evolutionary path of contaminants in molten salts to reveal the decontamination mechanism, thus providing a basis for the practical application of the method. Thermodynamic analysis revealed that alkali metal hydroxides, carbonates, chlorides and nitrates can react with uranium oxides (UO3 and U3O8) to form various uranates. Notably, the decontamination mechanism was elucidated by analyzing the chemical composition of the contaminants in the molten salts and the surface morphology of the specimens considering NaOH–Na2CO3–NaCl melt as the decontaminant. The decontamination process involved two stages: a rapid decontamination stage dominated by the thermal effect of molten salt, and a stable decontamination stage governed by the chemical reactions and diffusion of molten salt. Subsequently, a multiple decontamination strategy was implemented to achieve high decontamination rates and low residual radioactivity. Within the actual cleaning time of 30 min, the decontamination efficiency (DE) of UO3-contaminated specimens reached 97.8% and 93.0% for U3O8-contaminated specimens. Simultaneously, the radioactivity levels of all specimens were reduced to below the control level for reuse in the nuclear domain. Particularly, the actual radioactive waste from the nuclear industry reached a reusable level of radioactivity after decontamination. The NaOH–Na2CO3–NaCl melt outperforms conventional chemical solvents and may be one of the most rapid and efficient decontaminants for stubborn uranium contamination of metal surfaces, which provides insights in regard to handling nuclear waste.

Monitoring the dynamic process of non-thermal plasma decontaminated water with Raman spectroscopy real-time analysis system

This study focuses on the target pollutant, indigo carmine (E132), employing Raman spectroscopy in conjunction with machine learning techniques. An accurate quantitative analysis model was developed to monitor the dynamic plasma decontamination process, utilizing the partial least squares (PLS). The PLS model exhibited excellent predictive performance, achieving adjusted determination coefficients (R2) of 0.9990 and root mean square error (RMSE) values of 0.0058 g/L for the training set, and 0.9730 and 0.0178 g/L for the test set. Real-time monitoring using Raman spectroscopy investigated the impact of discharge voltages, gas flow rates, and solution pH values on E132 degradation. Feedback control based on real-time data led to a 75 % improvement in degradation efficiency by adjusting discharge gas velocity and enhanced energy utilization through discharge time control. Furthermore, the study provided insights into the mechanisms of air plasma-based wastewater treatment. This research presents a convenient and efficient method for online pollutant analysis, optimizing plasma-based water treatment parameters, improving treatment effectiveness, and conserving energy. It lays the groundwork for integrating advanced control algorithms to achieve automated decontamination processes.

Biochar-Based Adsorbents for Pesticides, Drugs, Phosphorus, and Heavy Metal Removal from Polluted Water

Water contamination is a ubiquitous issue for all countries and territories worldwide. Among others, pesticides, drugs, heavy metals, and phosphates play a special role in terms of pollutants due to their toxicity and large-scale applications in industrial and agricultural activities. In order to provide cleaner freshwater for the world’s population, two types of actions are required: preventing/limiting the pollution that might occur during our daily activities and decontaminating the already exposed/contaminated water sources. One of the key points in the decontamination process is to create as few as possible side effects with the solutions applied. For this reason, in the case of the mentioned types of pollutants but not limited only to them, the use of environmentally friendly materials is more than welcome. Biochar qualifies as one of these materials, and its field of applications expands to larger scientific and industrial areas every day. Moreover, it can be functionalized in order to improve its properties in terms of pollutant removal efficiency. This paper summarizes the most recent developments in the field of water decontamination using biochar or biochar-based materials in order to remove pesticides, drugs, heavy metals, and phosphates from contaminated aqueous environments. Also, the removal of phosphorus from wastewater using biochar is considered. This removal can be a key controlling factor for the wastewater, which is obtained as a residual of agricultural activities. Indeed, due to the excessive use of chemical fertilizers, eutrophication in such kinds of wastewater can be a serious challenge.

A Comparative Analytical Study on Medicated Vegetable Washes with Distilled Water Wash w.s.r to Cypermethrin and Chlorpyriform Pesticide Residue in Coccinia Grandis

Fresh vegetables and fruits are the main sources of micro-nutrients and macro nutrients for health. Pesticides are mainly used to increase the yield. Pesticides are potentially toxic to humans and can have both acute and chronic health effects, depending on the nature of exposure and duration exposure and the quantity of exposure. This study was done to evaluate the efficacy of medicated vegetable wash comparison. Two samples of Medicated water were prepared according to the Kshara preparation of Ayurveda classics. In Samhitas various decontamination have been explained for various types of pollution. Two commonly used pesticides, Cypermethrin and chlorpyrofos were taken in this study. For this study organic vegetable ivy gourd (Coccinia grandis) were selected and treated with the pesticides as per QuEChERs method (quick, easy, cheap, effective, rugged and safe) method. The analysis was done GCMS/MS. The results depicted reduction of pesticide residue by medicated water decontamination process with distilled water. Although it varied in different in the two samples, overall medicated water 2 is having more effect on both pesticide residues over medicated water 1and distilled water.

Mechanical Recycling of Thermoplastics: A Review of Key Issues

During the last decade, the consumption of plastics has increased highly in parallel with plastic waste. The transition towards a circular economy is the only way to prevent the environment from landfilling and incineration. This review details the recycling techniques with a focus on mechanical recycling of polymers, which is the most known and developed technique in industries. The different steps of mechanical recycling have been highlighted, starting from sorting technologies to the different decontamination processes. This paper covers degradation mechanisms and ways to improve commodity polymers (Polyolefins), engineering polymers (PET, PA6), and bio-sourced polymers (PLA and PHB).

A critical review on the recent progress in application of electro-Fenton process for decontamination of wastewater at near-neutral pH

A critical review on the recent progress in application of electro-Fenton process for decontamination of wastewater at near-neutral pH

A Coupled Thermal Desorption Process for Decontamination of Polycyclic Aromatic Hydrocarbon from Soil: Important Role of the Steam Injection

A Coupled Thermal Desorption Process for Decontamination of Polycyclic Aromatic Hydrocarbon from Soil: Important Role of the Steam Injection

Fabrication of new composite NCuTiO2/CQD for photocatalytic degradation of ciprofloxacin and pharmaceutical wastewater treatment: degradation pathway, toxicity assessment

In this research, the photocatalytic degradation of CIP from aqueous solutions using CQD decorated on N-Cu co-doped titania (NCuTCQD) was made during two synthesis steps by sol–gel and hydrothermal methods. The fabricated catalysts were analyzed using various techniques, including XRD, FT-IR, BET, FESEM, EDX, and DRS. The results showed that N and Cu atoms were doped on TiO2 and CQD was well deposited on NCuT. The investigation of effective operational parameters demonstrated that the complete removal of ciprofloxacin (CIP: 20 mg/L) could be achieved at pH 7.0, NCuTCQD4wt%: 0.8 g/L, and light intensity: 100 mW/cm2 over 60 min reaction time. The O2•– and OH˙ radicals were identified as the primary reactive species during the decontamination process. The synthesized photocatalyst could be recycled after six consecutive cycles of CIP decomposition with an insignificant decrease in performance. Pharmaceutical wastewater was treated through the optimum degradation conditions which showed the photocatalytic degradation eliminated 89% of COD and 75% of TOC within 180 min. In the effluent toxicity evaluation, the EC50 values for treated and untreated pharmaceutical wastewater increased from 62.50% to 140%, indicating that the NCuTCQD4wt%/Vis system can effectively reduce the toxic effects of pharmaceutical wastewater on aquatic environments.

Efficacy of Plasma Enhanced Advanced Oxidation Processes for Decontamination of Water Containing Arsenic

Efficacy of Plasma Enhanced Advanced Oxidation Processes for Decontamination of Water Containing Arsenic

Role of ammonium ionic liquid and Pd nanoparticles in cavitation-based graphite decontamination and recycling process

Sonochemical recovery of radioactive contaminants from nuclear graphite has been demonstrated to be quite invaluable in recent studies. However, graphite is a soft material and is prone to erosion and wear. This restricts the recycle of graphite cleaned using ultrasound beyond a few decontamination cycles. Hence, it is an imperative to prevent the surface erosion of graphite in the sonic field. The current work studies the efficacy of ultrasound in decontaminating ceria contaminated graphite coupons using a cocktail of acids (0.25 M HNO3 − 1 M HCOOH − 0.2 M [N2H5][NO3]). Based on the superlative effects of ionic liquids in lubrication and erosion prevention, the effect of adding ionic liquid stabilized Pd nanoparticles to the leachate was also studied. It was observed that the Trioctylmethyl ammonium chloride (TOMAC) ionic liquid prevented the generation of the carbon residue due to a protective viscous layer formation reducing the mechanical effects of cavitation on graphite surface. It also helped in maintaining the porosity change in graphite microstructure around 5% after 15 cycles of decontamination. TOMAC also proved to offer better surface protection on graphite compared to imidazolium-based ILs, based on the change in compressive strength and porosity in different ionic liquids. The palladium nanoparticles, on the other hand, helped in reductive dissolution of ceria layer by acting as a reducing agent due to its lower reduction potential compared to cerium. With the surge in demand of graphite worldwide, a non-destructive decontamination process for graphite with no secondary waste generation is the need of the hour. This study is an attempt in that direction.

Simulation of backflow during the dynamic containment of airlocks

Decontamination processes in nuclear facilities require the implementation of ventilated airlocks around the contaminated equipment to prevent leakage of radioactive materials toward the surrounding environment. To ensure compliance with the recommendations of an efficient dynamic containment in nuclear facilities, which are provided by the ISO 17873 standard depending on maintenance and dismantling sites in nuclear facilities, depression must be ensured in the room where the contaminated equipments installed by using exhaust fans. This study focuses on two main objectives: first, identifying and comprehending the physical phenomena and geometric or dynamic parameters involved in the appearance of backflow of pollutants during the dynamic confinement on nuclear sites by air transfer mechanisms through openings; second, investigating and simulating the configurations and aerodynamic conditions in the vicinity of the openings that may result in the phenomenon of backflow in the case of a gaseous pollutant. Numerically simulating this occurrence will improve our capacity to comprehend, predict, and thus prevent it. The openings in which we are interested are those likely to be encountered in the airlocks of nuclear sites. These are rectangular slots with thin rigid or flexible walls. To illustrate this phenomenon, a numerical simulation is performed using the ANSYS Fluent commercial calculation code, a dynamic mesh is used to simulate a moving plate which consists in generating disturbances in the flow. The comparison of the experimental and numerical results confirms the leakage of the pollutant through the opening outside the depressurized airlock, and this only for well defined extraction velocities. HIGHLIGHTS Comprehension of the physical phenomena involved in the appearance of backflow of pollutants during dynamic confinement; Investigation and simulation the configurations and aerodynamic conditions in the vicinity of the openings that may cause a phenomenon of backflow in the case of a gaseous pollutant; Increasing the capacity for comprehension and prediction in order to prevent the phenomenon of backflow gaseous pollutants through simulation.

The synergy of zinc oxide supported magnetic cobalt ferrite: Efficient boosting the peroxymonosulfate activation towards the refractory organic pollutants elimination

Herein, we report the construction of ZnO-supported spinel CoFe2O4 (CFO) nanocomposites, i.e., CFZ, by a facile hydrothermal method, as an effective peroxymonosulfate (PMS) activator for the degradation of organic pollutants. The optimized hybrid catalyst CFZ 1:1 showed excellent enhancement in efficiency towards BPA decontamination as compared to the single metal oxides alone and the mixing of CFO and ZnO powder. Under the conditions of 0.5 g.L−1 CFZ 1:1, 0.2 g.L−1 PMS, and non-adjusted pH, the removal efficiencies of 95% and 67% were attained for BPA (20 mg.L−1) and TOC within 20 mins reaction. The catalytic decontamination process could adapt to a wide pH range (pH5 – pH9) and showed negligible influence by several common anions. Interestingly, the presence of Cl- ions accelerated the BPA removal rate (k = 0.303 min−1 by adding 50 mM Cl), suggesting that the CFZ 1:1/PMS system could function well under salty conditions. Based on the quenching experiments and electron paramagnetic resonance (EPR) characterization, the generation of nonradical singlet oxygen (1O2), sulfate radical anion (SO4•-), and hydroxyl radical (•OH) was responsible for BPA degradation in which 1O2 was hypothesized to be the dominant reactive oxygen species. Beside the separately efficient removal of several pollutants represent for dyes, antibiotics, and POPs, CFZ 1:1/PMS system could almost completely eliminate mixed pollutant solution containing BPA, rhodamine B, and tetracycline after a short time 20 mins. The CFZ 1:1/PMS system also remained highly stable and robust for 4 consecutive runs with over 80% BPA removal and minimal leaching of metal ions. Overall, the results enlightened new insights into the design and development of composite catalysts for the removal of persistent pollutants from wastewater.

Covalent or ionic bonding of Eosin Y to silica: New visible-light photocatalysts for redox wastewater remediation

Eosin Y (EY) is an organic dye widely used as a photoredox catalyst in organic synthesis, but there are only few studies on its use in heterogeneous photocatalysis for the degradation of aqueous Contaminants of Emerging Concern (CECs). In this context, several synthetic strategies were used to prepare heterogeneous silica-based photocatalysts where EY is anchored to glass wool (GW) covalently or using ionic bonds for obtaining GW-C-EY and GW-I-EY, respectively. The percentage of EY linked to GW-C-EY (up to 0.0034% w/w) was always lower than the obtained in GW-I-EY (0.165% w/w). Photodegradation of CECs such as noscapine (NOS), sulfamethoxazole (SMX) and ofloxacin (OFX) was studied using the new heterogeneous photocatalysts in water under visible light irradiation and results showed that only NOS is photodegraded. It was also observed that EY photoreactivity in GW-C-EY and GW-I-EY is quite similar. Interestingly, when the photocatalysts were studied using mixtures of the three CECs, a synergistic effect that favors the photodegradation of SMX and OFX was observed. Specifically, GW-I-EY achieves 100% photodegradation for NOS and ca. 50% removal of SMX and OFX. Based on photophysical and photochemical experiments, redox processes initiated by an electron transfer from NOS to the EY triplet excited state and the subsequent reaction of the generated EY•− with SMX or OFX justify the observed synergistic photodegradation. This finding opens up the possibility of working with complex aqueous matrices and also of smart selecting the combination of different types of contaminated waters to favor the efficiency of the photocatalytic decontamination processes.

Development of a robotic system for the automation of the decontamination process of nuclear power plants

Abstract. As part of Phase II of the ROBDEKON (Robotersysteme für die Dekontamination in menschenfeindlichen Umgebungen) project, funded by the German Federal Ministry of Education and Research (BMBF), an automated process chain for the decommissioning process of nuclear power plants is being developed at the Karlsruhe Institute of Technology Institute of Technology and Management in Construction (KIT-TMB). In this project, technical solutions for the autonomous environmental exploration and detection of radioactive contamination, modeling and digitization with building information modeling (BIM), automatic decontamination, and contamination measurement have been developed. The aim of the research is to develop universal, robot-based solutions for a complete, automated decontamination process that can be flexibly adapted to changing environmental conditions. In the following, the third process step, the automated decontamination, is described in more detail. The basis for the automated decontamination system is a mobile platform. For the transformation of the platform into an automated decontamination system, it is first equipped with the necessary components. The control unit (PLC) is connected via a gateway to the sensors required to determine the position of the manipulator and motor controllers. The motor controllers send back essential information, such as motor current, motor voltage, and motor temperature, to the PLC. To locate the decontamination system in its environment, two safe lidar sensors are attached to the platform. The lidar sensors provide the positions of the decontamination system with respect to a reference coordinate system in the PLC. In addition, the lidar sensors are capable of detecting people in the vicinity of the decontamination system and, if necessary, generating a warning signal to prevent an accident. Furthermore, the platform is equipped with additional safety sensors that also generate a warning signal in case of danger. The warning signals are transmitted to the PLC. In the case of a warning signal, the decontamination system stops and either waits until the situation is safe again or selects a different trajectory to the target point. The decontamination system will operate in teleoperation and automatic mode. For this purpose, a user-friendly interface will be developed so that users can operate the system without deep technical knowledge. For the investigation and decontamination of flat wall structures in a nuclear facility, two tools were developed that can be mounted on the robot platform: an automatic milling tool and a tool for detecting and measuring radioactive contamination. As part of the planned presentation at safeND 2023, a brief introduction to the automated decommissioning chain will be given first. Furthermore, the current design of the decommissioning system, as the third step in the chain, and the pending sensor integration will be presented. Subsequently, the control concepts required for automation, the concepts for trajectory planning that have to be programmed on the PLC, will be presented.