The results of radical trapping experiment showed that O2-, h+, OH, O3 and H2O2 were the main reactive species for AO7 degradation in the DBD-NTP and g-C3N4-15/TiO2 process. The Z-scheme photocatalytic mechanism for the g-C3N4/TiO2 catalyst was proposed. Exposure to endocrine disruptors interferes with the synthesis, release, transport and metabolic activities of hormones, thus impairing human health significantly. Bisphenol A (BpA), an endocrine disruptor, commonly released into the environment by industrial activities and needs immediate attention. This study aims at investigating the process and prospects of deploying bio-electrochemical systems (BES) for the removal of BpA from artificially contaminated soil using Bacillus subtilis HV-3. The BES was setup with desired operating conditions initial concentration of BpA (80-150 mg/L), pH (3-11) and applied potential voltage (0.6-1.4 V). Under optimized conditions (initial BpA concentration, 100 mg/L; pH 7; and applied voltage 1.0 V), close to 98% degradation of BpA was achieved. The intermediates produced during degradation were analysed using High performance liquid chromatography-Mass spectrometry and the possible degradation pathway was elucidated. Phytotoxicity studies in the remediated soil with Phaseolus mungo confirmed the environmental applicability of the BES system. Aerobic composting and anaerobic digestion with hydrolysis pretreatment are two mainstream methods used to recycle and reclaim sewage sludge. However, during these sludge treatment processes, many odors are emitted that may cause severe emotional disturbance and health risks to those exposed. This study identified odor pollution (i.e. sensory influence, odor contribution, and human risks) from samples collected during sludge aerobic composting throughout different seasons as well as during anaerobic digestion with hydrolysis pretreatment. Odor intensity, odor active values, and permissible concentration-time weighted averages for ammonia and five volatile sulfur compounds were assessed. The results revealed serious odor pollution from all sampling sites during aerobic composting, especially in winter. Zelavespib Excessively strong odors were identified in the composting workshop, with total odor active values between 997 and 8980 which accounted for 78.45%-96.18% of the total sludge aerobic composting plant. Levels of ammonia and dimethyl disulfide in the ambient air were high enough to harm employees’ health. During anaerobic digestion, excessively strong odors were identified in dehydration workshop 2, and the total odor active values of six odors reached 32,268, with ammonia and hydrogen sulfide levels significant enough to harm human health. The ability to immobilise PFAS in soil may be an essential interim tool while technologies are developed for effective long-term treatment of PFAS contaminated soils. Serial sorption experiments were undertaken using a pine derived biochar produced at 750 °C (P750). All experiments were carried out either in individual mode (solution with one PFAS at 5 μg/L) or mix mode (solution with 5 μg/L of each PFOS, PFOA, PFHxS and PFHxA), and carried out in 21 water to soil solutions. Soils had biochar added in the range 0-5% w/w. Kinetic data were fitted to the pseudo-second order model for both amended soils, with equilibrium times ranging 0.5-96 h for all congeners. PFOS sorption was 11.1 ± 4.5% in the loamy sand compared to 69.8 ± 4.9% in the sandy clay loam. While total sorption was higher in the unamended loamy sand than sandy clay loam for PFHxA, PFOA and PFOS, the effect of biochar amendment for each compound was found to be significantly higher in amended sandy clay loam than in amended loamy sand. Application of biochar reduced the desorbed PFAS fraction of all soils. Soil type and experimental mode played a significant role in influencing desorption. Overall, the relationship between sorbent and congener was demonstrated to be highly impacted by soil type, however the unique physiochemical properties of each PFAS congener greatly influenced its unique equilibrium, sorption and desorption behaviour for each amended soil and mode tested. The need for conducting evaluations which reflect of the influence of context on complex programs is increasingly recognized in the field of evaluation. Better data visualization techniques for connecting context with program evaluation data are needed. We share our experience developing a mixed methods timeline to visualize complexity and context with evaluation data. Mixed methods timelines provide a meaningful way to show change over time in both a visually stimulating and accessible format for evaluation audiences. This paper provides an innovative example of using mixed methods timelines to integrate evaluation data with key program activities and milestones, while also showing internal and external contextual influences in one cohesive visual. We present methods and best practices for collecting contextual data and for incorporating a variety of data sources into such a visual. We discuss several strategies to collect and organize context related data including qualitative interviews, program materials, narrative reports, and member checking with stakeholders and staff. Gathering multiple perspectives is essential to better capture the multi-layered elements of program activities and context. The single-gimbal of control moment gyro (SGCMG) servo system needs high stability, high precision and low speed operation. Therefore, a novel driving approach of ultrasonic motor, called the superposition pulse driving method, is proposed in the present study by prolonging the turn-off time of the conventional micro-stepping driving method. Then, three types of contact models are proposed with the variable of pre-pressure between stator and rotor. Moreover, a theoretical analysis is carried out according to the classical friction binomial law. Results of the performed experiment show that, applying the superposition drive method may lead to the significant reduction of periodic vibration’s adverse effect caused by mechanical system’s inertia on the motor speed. Furthermore, it is found that the proposed method not only eliminates the alternating oscillation of the motor speed with large amplitude period, but also it significantly reduces the velocity volatility. It is found that compared with the micro-stepping method, the velocity volatility reduces four groups of different average velocity by about 200% thereby effectively improving the stability of the system.