in this survey, with the main objective of studying final effluent treat ability of pars paper industries, the quantitative and qualitative characteristics of the effluent were firstly determined, which showed a min. and max. rate of 1350 and 1800 m3/hr, with 1400 mg/l and 839.5 mg/l respectively for cod and tss, as the main contaminants. also cod and tss population equivalents were calculated ...

the purpose of this study was comparison of applicability of tertiary treatment of tehran domestic sewage with organic and inorganic coagulants or a combination of them. the far test procedure was applied utilizing: alum, polyelectrolyte wt 2600, anionic polyelectorlyte wt 3000, and nonionic polyelctrolyte wt 2690 as organic coagulants (products of calgon). the combination of lime with each of ...

background: in recent years, natural products, especially natural antioxidants, play an important role in various fields. in fact, lippia citriodora is one of the medicinal plants which is cultivated in iran and it may be has potential antioxidant activity. objective: the chemical composition of lippia citriodora essential oil (lceo) has been determined. the total phenolic content and antioxida...

patients and methods medical records of patients were analyzed retrospectively. results of the six patients, 83.3% (n = 5) were male and 16.7% (n = 1) were female, with a mean age of 2.1 ± 0.49 years. the most common clinical signs were dyspnea (83.3%), fever (66.6%), and vomiting (66.6%). owing to supportive treatments and the combined steroid treatment, respiratory distress diminished and the...

we examined the effectiveness of intermittent warming (iw), hot water (hw), salicylic acid (sa), and calcium chloride (cacl2) on the postharvest life of pomegranate fruit cv. ‘shishe-kab’ and extending fruit shelf life during cold storage (3°c). fruit were subjected to cycles of 1 d at 17 ± 1°c every 6 d of storage at 3°c under iw conditions. pre-storage treatments were hw (50°c) for 3 min, sa ...

background: ocsillator system is recognized by many water plant treatment designers for having many advantages, such as combination of mixing processes, flocculation and sedimentation processes in the same unit, the possibility of softening and lucidity simultaneously, and relatively acceptable efficiency. despite using this process in number of the regions in the country, enough researches hav...

the objective of this research was to develop a laboratory test procedure to predict full-scale primary clarifier performance using chemically enhanced primary treatment (cept). a method was developed that simulated actual primary clarifier performance, with chemical enhancements, based on simulating full-scale surface overflow rate (sor) and flocculation time in the laboratory. the method used...

the aim of the present study was to characterize allergen-specific immunoglobulin e (ige) among children in fez region. eighty one children were recruited from the hospital university center of fez. all of them had completed a questionnaire before taking sera. the sera were used to measure total ige and specific data to proteins of egg's white (ewp), peanuts (pp) and gliadins (g). in last part,...