Advancedtreatmentofsalinemunicipal wastewaterby Ruppia maritima: Adataset

Saline municipalwastewatertreatmentisachallengingenviron- mental issueincoastalcities,duetothedischargeofsalinewater into thesewers.Thepresentresearcharticlefocusesonthephy- toremediationofhighsalinemunicipalwastewaterby Ruppia maritime, awidespreadplantwhichcanbefoundinsalinemedium such astraditional fish ponds,estuaries,tidal flats, saltpans, coastal paddy fields, coastallagoons,marshpools,andmangrove salt marshesinKhuzestanprovince,Iran.Theexperimentaldata wasobtainedusingapilotplantconstructedinChobeinehwas- tewatertreatmentplantinAhvazcity,fedbyactivatedsludge effluent in3levelsofelectricalconductivity(EC)(10,15, 20 mscm�1), during45daysoftheexperiment.Chemicaloxygen demand (COD),totalnitrogen(TN),totalphosphorus(TP)andtotal suspended solids(TSS)weredailymonitoredinblankandpilot study.TheCODremovaldecreasedfrom83.26%to72.39%by increasing theEClevelfrom10to20mscm�1, respectively.The experimentaldatawillpracticallybeanappropriatesourceof information forenvironmentalengineerstodesignanatural treatment scenarioforsalinewastewatertreatment

Investigation into effects of work-related quality of life and some related factors on cognitive failures among nurses

Objective. Cognitive failure is one of the factors which can be influenced by personal and professional characteristics. This research was carried out to study the effect of work-related quality of life (WRQoL) and some related factors on cognitive failures (CF) among nurses. Methods. This cross-sectional study was conducted among nurses working in intensive care units, critical care units and emergency units in 2014. Results. In total, 750 nurses participated in the study. The mean +/- SD for the total CF and WRQoL was 40.5 +/- 12.7 and 75.8 +/- 13.7 respectively. The results show that CF have a statistically significant difference among the age groups, experience groups and working units. Multiple regression tests show that age, income and WRQoL have a significant effect on CF. Based on the results, for a unit increase in WRQoL we expect a 0.26 unit decrease in CF. Analysis of variance results show that the emergency ward had changed the overall effect of WRQoL on CF, after the effect of WRQoL was controlled. Conclusions. Overall results from the present research indicated that, despite the high level of WRQoL among the studied nurses, the rate of CF was not at an appropriate level. Development of supportive and interventional strategies is highly recommended

Study of floristics, life form and chorology of plants in Shimbar protected area (Khuzestan province)

The Shimbar or Shirin Bahar region with an area of 53000 h is located in 45 km north east of Masjed Soleyman city, Andica town and north of Shahid Abaspour dam. The area belongs to the Zagrosian district of Irano-Turanian region. In three seasons, winter, spring and summer of 2012 to 2013, herbarium specimens of the area were collected and named by the Floras of Iran and neighboring countries. In this research, 189 species belonged to 149 genera and 51 families were determined. Most of the species belonged to Asteraceae with 23, Poaceae with 19, Lamiaceae and Papilionaceae with 18, Rosaceae with 10, Apiaceae with 9 and, Brassicaceae followed by the Caryophyllaceae each with 8 species. The life forms of the species in Shimbar included 13% phanerophytes, 6% chamephytes, 25% hemicryptophytes, 15% cryptophytes and 41% therophytes. The highest precent of the species belonged to the Irano-Turanian region

Advanced treatment of saline municipal wastewater by Ruppia maritima: A data set

Saline municipal wastewater treatment is a challenging environmental issue in coastal cities, due to the discharge of saline water into the sewers. The present research article focuses on the phytoremediation of high saline municipal wastewater by Ruppia maritime, a widespread plant which can be found in saline medium such as traditional fish ponds, estuaries, tidal flats, salt pans, coastal paddy fields, coastal lagoons, marsh pools, and mangrove salt marshes in Khuzestan province, Iran. The experimental data was obtained using a pilot plant constructed in Chobeineh wastewater treatment plant in Ahvaz city, fed by activated sludge effluent in 3 levels of electrical conductivity (EC) (10, 15, 20 ms cm−1), during 45 days of the experiment. Chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and total suspended solids (TSS) were daily monitored in blank and pilot study. The COD removal decreased from 83.26% to 72.39% by increasing the EC level from 10 to 20 ms cm−1, respectively. The experimental data will practically be an appropriate source of information for environmental engineers to design a natural treatment scenario for saline wastewater treatment