Davoud Balarak
Student Research Committee, Department of Environmental Health, School of Health, Mazandaran University of Medical Sciences, Sari, Iran
[ 1 ] - Effect of Azolla filiculoides on removal of reactive red 198 in aqueous solution
The textile dyes are considered as major environmental problems. The dyes can be removed by various methods. Therefore, this study aimed to evaluate the adsorption rate of Reactive Red 198 (RR198) from aqueous solution by activated Azolla filiculoides. This was an empirical-lab study. The Azolla was used as an adsorbent to remove Reactive Red 198 dye. The effect of various parameters was invest...
[ 2 ] - جذب زیستی بیس‌فنل A توسط زائدات کشاورزی: بررسی ایزوترمی و سینتیکی
زمینه و هدف: بیس‌فنل Aاز ترکیبات فنل می‌باشد که حتی در غلظت‌های بسیار کم برای انسان و محیط زیست، خطرناک و سمّی بوده و در فاضلاب‌های صنعتی به فراوانی یافت می‌‌شود. در مطالعه حاضر، حذف بیس‌فنل A به‌وسیله زائدات گیاه کلزا بررسی گردید. روش بررسی: در این مطالعه تجربی، ابتدا زائدات کلزا، جمع‌آوری و ساقه آنها جداسازی شد، سپس در فور (دمای 105 درجه سانتیگراد، به‌مدت 24 ساعت)، خشک و با استفاده از الک‌های...
[ 3 ] - حذف فلوراید از محلول های آبی با استفاده از بیومس اصلاح شده عدسک آبی: بررسی ایزوترم و سینتیک‌های جذب
Background and purpose: Fluoride in drinking water can be either beneficial or detrimental to health depending on its concentration. Its high concentrations leads to dental and skeletal fluorosis and lesions of the endocrine glands, thyroid and liver. This paper describes the removal of fluoride from water using lemna minor. Material and methods: This research was a lab study. The lemna minor...
[ 4 ] - بررسی قابلیت بیومس آزولا و عدسک در جذب فنل از محیط‌های آبی
Background and purpose: The presence of phenol and its derivatives in water and wastewater are of major concern because of their toxicity and threat to human life and environment. The aim of this study was determination of the modified lemna minor and azolla in phenol adsorption. Materials and methods: In this emperical-lab study, the washed lemna minor and azolla was used as adsorbents. The e...
[ 5 ] - بررسی جذب فنل از محلول های آبی توسط گیاه آزولای خشک شده
Background and purpose: Phenol whose carcinogenic property has been evidenced is one the organic compounds found in industrial wastewater. Therefore, this effluent must be treated before it is discharged to the environment. The aim of this study was to investigate whether dried azolla can absorb phenol from aqueous solution. Materials and methods: First, the collected azolla was washed by dis...
[ 6 ] - بررسی میزان جذب رنگ اسید بلو113 توسط گیاه کانولا از محیط آبی
Introduction: Industrial wastewater is one of the major environmental pollutants. Discharge of the colorful industrial effluent into the receptive waters leads to eutrophication and has mutagenic and carcinogenic properties. Therefore, the aim of this study was to investigate the removal of acid blue113 from aqueous solutions by Canola (Brassica Napus) waste. Materials and Methods: This is an ...
[ 7 ] - آنالیز کمی کیفی مواد زائد شهری تبریز
Introduction: The amount and composition of municipal solid waste, as basic data, require to design, operation and optimization of waste management systems. The aim of this study was to investigate the qualitative and quantitative of municipal solid waste in tabriz city. Materials and Methods: This is a cross-sectional study. The samples were collected from all regions (10 regions) of Tabriz...
[ 8 ] - بررسی جذب فنل از محیط‌های آبی توسط گیاه سورگوم و کلزا و تعیین ایزوترم و سینتیک جذب
Background and Objective: Phenol is one of organic pollutants in industrial effluent and it is toxic to human and environment, so it must be removed before being discharged to environment. Therefore, the purpose of this study was investigating adsorption of phenol from aqueous solutions by sorghum and canola and determination of adsorption isotherms and kinetics Materials and Methods: This s...
[ 9 ] - بررسی تجزیه فتوکاتالیستی آنتی‌بیوتیک سیپروفلوکساسین با استفاده از نانوذرات اکسید مس ) (CuO/UV در محیط‌های آبی
Background and Objectives: Surface water and groundwater pollution can cause health problems for human. Antibiotics have special importance due to inducing bacterial resistance in a way that even in low concentrations can cause drug resistance. Ciprofloxacin is one of the antibiotics that various remediation methods have been, up to now, applied for. The objective of this study was to investiga...
[ 10 ] - مطالعه ایزوترمی و سینتیکی جذب سطحی پنی‌سیلین G از محلولهای آبی با استفاده از کانولای اصلاح شده
Background and Objectives: Antibiotics are one of the important sources of environmental pollution in recent years and are harmful for human health and environment. Therefore, the purpose of this research was investigating removal of penicillin G from aquatic solution by activated canola. Materials and methods: This study was an experimental-laboratory research and performed at batch system....
[ 11 ] - بهینه‌سازی جذب سطحی رنگ راکتیو اورنج 16 (RO16) از محلولهای آبی توسط ساقه آفتابگردان اصلاح شده با استفاده از روش سطح پاسخ
Background and Objective: Existence of dye in water resources and wastewater can cause the environmental problems that must be removed from water. There has been some increase in the use of low-cost adsorbent substances as sewage treatment over recent years. Therefore, the purpose of this study was to optimize dye (RO16) removal from aqueous solutions by quarternary ammonium chloride (C6H15Cl2N...
[ 12 ] - ارزیابی شاخص‌های بهداشتی کیفیت آب استخرهای شنای شهر ارومیه در سال 1392
Background and Objective: Contamination of swimming pools’ water can lead to the transfer of different diseases to humans. The aim of this study was to investigate the water quality health indicators in Urmia swimming pools. Materials and Methods: In this cross-sectional study, 14 active covered swimming pools in Urmia city were chosen as census. The physical parameters such as pH, tem...
[ 13 ] - Agricultural Waste as Adsorbent for Removal of Chromium (VI) from Aqueous Solution
Background & Aims of the Study: Since the chromium (VI) is a toxic, carcinogenic and non-biodegradable element and can accumulate in the tissues, the presence and release of this element through the effluents is associated with dangerous effects on life cycle. Thus, it should be removed from the effluents. In the present study, biosorption of Cr(VI) from aqueous solutio...
[ 14 ] - Application of Azolla for 2, 4, 6-Trichlorophenol (TCP) Removal from Aqueous Solutions
Background & Aims of the Study: The 2, 4, 6-Trichlorophenol (TCP) is a phenolic compound which it can produce adverse effects on human and environment. Therefore, the removal of these compounds is necessary. The aim of this study is the investigation of TCP removal by using Azolla filiculoides biomass. Materials & Methods: The Azolla biomass was dried in the sunlight, and...
[ 15 ] - Application of Azolla Filiculoides biomass for Acid blue 15 dye (AB15) Removal from aqueous solutions
Background: one of the most important environmental pollutants is industrial wastewaters. Discharging of colorful industrial effluents to receptive waters can lead to eutrification and it has the carcinogenic and mutagenic properties. Therefore, the aim of this study is evaluation of Acid blue 15 dye removal by dried Azolla from aqueous solution. Material and methods: The Azolla biomass was dri...
[ 16 ] - Batch Removal of Acid Blue 292dye by Biosorption onto Lemna minor: Equilibrium and Kinetic Studies
Background; Recently, there has been a great concern about the consumption of dyes because of their toxicity, mutagenicity, carcinogenicity, and persistence in the aquatic environment. Therefore, the aim of this study was to determine the feasibility of using Lemna minor for Acid Blue 292 (AB292) dye removal from aqueous solution and to determine the optimal conditions. Methods; This experimen...
[ 17 ] - Application of Azolla for 2-Chlorophenol and 4-Chrorophenol Removal from Aqueous Solutions
Background and purpose: The 2-chlorophenol (2-CP) and 4-chlorophenol (4-CP) are phenolic compounds which may have adverse effects on human and environment. Therefore, removing these compounds from water and wastewater is necessary. This study aims to analyze 2-CP and 4-CP removal by using Azolla filiculoides biomass. Materials & Methods: Azolla biomass was sun dried, crushed and sieved to parti...
[ 18 ] - Adsorption Rate of 198 Reactive Red Dye from Aqueous Solutions by using Activated Red Mud
Backgroud and purpose: Dye is one of the problems of industrial effluent such as textile industries. The dyes can be removed by various methods. Therefore, the aim of this study was the evaluation of adsorption rate of reactive red 198 from aqueous solution by activated red mud. Materials and methods: This research was a lab study. Activated red mud was used as an adsorbent to remove reactive r...
[ 19 ] - Quantity and Quality Analysis and Management of Dental Solid Waste Produced in Private Office in Urmia
Objective: Dental solid wastes often contain hazardous substances. The first step of management of dental solid wastes includes detection and classification of these substances. This study aimed to qualitatively and quantitatively assess the management of solid wastes by dental offices in Urmia city in 2013. Methods: This descriptive study was conducted on all private dental offices in Urmia...
[ 20 ] - کاربرد گل قرمز فعال شده برای جذب رنگزای اسید اورنج 7 از محلولهای آبی: مطالعات ایزوترمی ، سینتیکی
Application of modified red mud for adsorption of Acid Orang 7 (AO7) dye from aqueous solution: Isotherms, Kinetics studies Abstract: Backgroud: Existence of color is one of the problems of industrial effluent such as textile industries. The dyes can be removed by various methods. Therefore, the aim of this study is evaluation of adsorption rate of acid orange (AO7) from aqueous solution by act...
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