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Many organic hazardous pollutants such as bisphenolA (BPA) which are toxic and not easily biodegradable can concerns for environmental pollution worldwide. The objective of this study was to examine whether Azolla Filiculoides is able to remove BPA from aqueous solutions. In this study, the Azolla with different biomass (0.3, 0.6, 0.9, 1.2 g) has been cultured in solution that was contained 5, 10, 25 and 50 ppm BPA. Samples were collected every 2 days from all of containers. The analytical determination of BPA was performed by using of DR4000 uv-visible at λmax = 276 nm. The results indicated that Azolla has high ability to remove BPA from aqueous solutions. The BPA removal was 60-90%. The removal efficiency is increasing with decreasing of BPA concentration and increasing of biomass amount and vice versa. The removal efficiency was more than 90% when BPA concentration was 5 ppm and amount of biomass was 0.9gr. It is concluded that Azolla able remove BPA by Phytodegradation from the aqueous solutions. Since conventional methods of BPA removal need to high cost and energy, phytoremediation by Azolla as a natural treatment system can decrease those issues and it can be a useful and beneficial method to removal of BPA.

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Olive mill wastewater is considered as one of the most polluting effluents of the food industry and constitutes a source of important environmental problems. In this study, the removal of pollutants (chemical oxygen demand (COD), biochemical oxygen demand (BOD5), polyphenols, turbidity, color, total suspended solids (TSS), and oil and grease) from olive oil mill processing wastewater by peroxi-electrocoagulation/electrooxidation-electroflotation process with bipolar aluminum electrodes was evaluated using a pilot continuous reactor. In the electrochemical unit, aluminum (Al), stainless steel, and RuO2/Ti plates were used. The effects of pH, hydrogen peroxide doses, current density, NaCl concentrations, and reaction times were studied. Under optimal conditions of pH 4, current density of 40 mA/m(2), 1000 mg/L H2O2, 1 g/L NaCl, and 30-min reaction time, the peroxi-electrochemical method yielded very effective removal of organic pollution from the olive mill wastewater diluted four times. The treatment process reduced COD by 96%, BOD5 by 93.6%, total, polyphenols by 94.4%, color by 91.4%, turbidity by 88.7, suspended solids by 97% and oil and grease by 97.1%. The biodegradability index (BOD5/COD) increased from 0.29 to 0.46. Therefore, the peroxi-electrocoagulation/electrooxidation-electroflotation process is considered as an effective and feasible process for pre-treating olive mill wastewater, making possible a post-treatment of the effluent in a biological system.

Context: Constipation as a common morbidity among people is related to many disorders. Iranian-Islamic traditional medicine (IITM) is an ancient comprehensive medicine school that has a holistic attitude toward human health and disease. Constipation is considered by scholar IITM as the origin of many human disorders. This study aimed to describe viewpoints of IITM scholars toward constipation and its management. Evidence Acquisition: The main ancient resources in IITM were reviewed and a structural description was created about constipation and its management. Results: According to IITM, constipation is defined as defecation less than one time daily with firm and dry consistency. It is considered in IITM as a sign of maltempered body that if prolonged, could lead to the accumulation of harmful homors and its associated diseases like cancer. Some general recommendations of IITM help us to prevent and treat constipation; such as chewing food well, avoid of dry cold fiberless diet, regular aerobic exercise, and correction of body temperament. Moreover, diet therapy with high fiber fruits and vegetables, manipulative therapy such as abdominal massage with warm oils, and medication with herbal laxative or purgative drugs are specific therapeutic methods for constipation recommended by IITM scholars. Conclusions: It seems the holistic attitude of IITM toward constipation and comprehensiveness of its recommendations could be considered in health-related interventions and could ensure community health promotion.