Background: The conventional methods of water disinfection are chemical process, ozonation, UV radiation, membrane processes and etc. In recent years, electrolysis method has been considered that is a green process with high efficiency and not by-products. The aim of study is evaluation of efficiency of the electrolysis process with continuous flow in the disinfection of water contaminated with fecal coliform.

Materials and Methods: This study is a Descriptive - analytical study. The samples are prepared in three groups by adding domestic wastewater, manure and E.Coli colonies to distilled water. The prepared samples were introduced to continuous electrochemical reactor. The removal efficiency of electrolysis process was investigated in different conditions which include electrode material (copper and graphite compressed), reaction time (40, 50, 60 and 70 minutes), voltage 48V, distance of electrode 5 cm and the initial pH 7.

Results: The results indicate that removal efficiency depends on source of pollutant, reaction time, and type of electrode. Also the optimal efficiency for E.Coli colonies achieved in electrolysis instrument was as follows: electrode material = copper electrode, distance of electrode=5cm, applied voltage= 48V and reaction time=70 minute. Under these conditions removal efficiency was obtained 99%. No significant changes in pH, TDS and EC in different times and coliform bacteria were not created by changing the source.

Conclusion: According to the results of this study, using the electrolysis process with continuous flow, as a convenient method with high performance and environmentally, suggest for the disin fecting the water contaminated with fecal Coliform.

Background: The air pollutants such as CO, SO₂, NO₂, O₃, and particulate matters have harmful effects on public health. Determination of the actual concentration of the pollutants and description of air quantity and quality contents in comparison of standard conditions and timely informing people to regulate control programs is essential. Kashan is exposed to the winds contain-ing the suspended particulate matters due to the proximity of the desert. Moreover, the growth of population, factories and industries in the city are artifical resources of the air pollution. Hence, assessment and monitoring of air pollution standard condition in kashan is crucial.

Materials and Methods: In this cross-sectional and descriptive study, the concentration of CO, SO₂, NO₂, O₃, and suspended particulate matters less than 10 microns (PM₁₀) measured according to WHO standards in Panzdah-e-Khordad station of Kashan in 2011. The annual mean and maximum rates, the mean and maximum rate of summer and winter, and annual percentile 98%, determined for each pollutant and used in AirQ software. Then, the number of death and disease attributed to each pollutant was calculated.

Results:  The results demonstrate that the cumulative number of deaths attributed to PM₁₀, NO₂, SO₂, and O₃ was 100, 22, 82, and 54, respectively.

Conclusion: In total, the suspended particulate matters have the most effects on death and disease resulted from the air pollution. Hence, managing the resources of particulate matters and SO₂ pollutants has many effects on reducing the adverse health effects of air pollution in Kashan.

Background: The growth of population, improvement of quality of life and the development of industries have led to increase in the rate of urban and industrial waste. As the leachate of the waste has a lot of pollution, influences harmfully human health and the environment. Researches have shown that the advanced oxidation processes (AOPs) such as Fenton and Fenton-related processes can reduce chemical oxygen demand (COD) of the leachate effectively.

Materials and Methods: In this paper, the rate of decrease in the total suspended solids (TSS) of leachate from a composting facility in Isfahan was studied using electrochemical, Fenton and electro-Fenton processes. These processes were conducted at reaction times 0, 20, 40, and 60 minutes, with the currents of 0.5, 1 and 1.5A and hydrogen peroxide dosages 1000, 2000, and 3000 mg/L.

Results: In the three mentioned processes, the most TSS removal was observed at the first 40 minute of the reactions. Among the studied processes, the electro-Fenton removed up to 92.4% of the TSS and was recognized as the most effective method. Furthermore, electrochemical and Fenton removed 41.7% and 60.3% of the TSS, respectively.

Conclusion: Therefore, decreasing the TSS of leachate could change its qualities and reduce the leachate pollution and the adverse environmental effects.

Background: There are numerous negative side-effects of child sexual abuse such as post- traumatic stress disorder, depression, anxiety, and behavioral problems. The purpose of this study is the use of Specific Recall Training on depression and anxiety in children with Post Traumatic Stress Disorder (PTSD) caused by Sexual Abuse.

Materials and Methods: This study was a quasi-experimental with a pre-test, post-test and follow-up design and with a control group.34 children with post-traumatic stress disorder caused by sexual abuse were selected by available sampling and were randomly assigned to two groups. The experimental group was educated over 7 sessions of 1.5 hours by Specific Recall Training method. To collect data, the Spence children's anxiety questionnaire and children's depression questionnaire were used. Data were analyzed by using the SPSS-20 software and multivariate analysis of covariance method.

Results: The findings showed that specific recall training, significantly reduce depression and anxiety scores. In follow up, the pre-test effect, the long term effect of treatment on depression was observed (F=5.943, p=0.021), but it can't effectively reduce anxiety.

Conclusion: The results showed that specific recall training was effective on depression and anxiety in children with Post Traumatic Stress Disorder (PTSD) caused by sexual abuse. Therefore, counselors and therapists can use this method for the treatment of children with mentioned disorder.