نتایج جستجو برای: iceas

تعداد نتایج: 9  

Journal: :Renewable Energy 2021

The feasibility of using intermittent cycle extended aeration system (ICEAS) sludge as a lipid feedstock for biodiesel production was investigated. main effects in situ transesterification parameters, reaction temperature (30–70 °C), time (4–24 h), catalyst concentration (1–5% v/v), and proportion methanol to dry (5–25 ml/g) at five-levels well their simultaneous interactions were evaluated dev...

ژورنال: :طلوع بهداشت یزد 0
مقداد پیرصاحب m pirsaheb دانشگاه علوم پزشکی کرمانشاه میترا محمدی m mohamadi دانشگاه علوم پزشکی کرمانشاه

مقدمه: فاضلاب بیمارستانی حاوی انواع مواد مغذی و بطور مشخص نیتروژن و فسفر می باشد که در صورت تخلیه به محیط، منجر به ایجاد مشکلاتی دراکوسیستم های آبی و جانوری و در نهایت سلامت انسان می گردد. هدف از انجام این مطالعه تعیین کارایی سیستم لجن فعال هوادهی گسترده با سیکل متناوب (iceas) در حذف همزمان نیتروژن و فسفر از فاضلاب بیمارستانی است. روش بررسی: در این مطالعه توصیفی – مقطعی ابتدا یک راکتور لجن فعال...

Journal: :journal of health sciences and surveillance system 0
hamid reza zeinaddine azad university of bandar abbas branch, iran; afshin ebrahimi school of public health, isfahan university of medical sciences, isfahan, iran; vali alipour school of public health, hormozgan university of medical sciences, bandar abbas, iran; hormozgan environmental and occupational health engineering research center leila rezaei hormozgan environmental and occupational health engineering research center

background: this study aimed to determine the efficiency of the intermittent cycle extended aeration system (iceas) and the removal conditions of treating contaminants, especially nitrogen phosphorus from sea shopping center wastewater. methods: experiment was carried out on fish distribution center of bandar abbas and 30 samples were collected in a 6 month period from the inlet of the market s...

ژورنال: طلوع بهداشت یزد 2015
پیرصاحب, مقداد , محمدی, میترا ,

Abstract Introduction: Hospital wastewater including nutrients, nitrogen and phosphorous especially, that with discharge in environment result in problems in water ecosystem, animals and human health. Therefore, the aim of this study is determination of Nitrogen and phosphorous simultaneous removal from hospital wastewater by intermittent cycle extended aeration system (ICEAS). Methods: In...

Hadi Eslami , Mohammad Taghi Ghaneian , Seyed Abolghasem Mirhosseni Dehabadi , Seyed Vahid Ghelmani ,

Introduction: Sequential batch reactor (SBR) is one of the modified biological treatment systems which is able to remove BOD5, Nitrogen, and phosphorus from wastewater. The object of this study is to determine the removal efficiency of nitrogen, phosphorus, and heavy metals from municipal wastewater by the advanced SBR system. Materials and Methods: This descriptive-analytical and cross-sectio...

Journal: :مجله بهداشت محیط و توسعه پایدار 0
seyedvahid ghelmani m.sc. student pollutions, islamic azad university, yazd, iran. seyedabolghasem mirhossenidehabadi assistant professor, environmental pollutions department, islamic azad university, yazd, iran. mohammadtaghi ghaneian associate professor, environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical science, yazd, iran. hadi eslami phd candidate, environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences, yazd, iran.

introduction: sequential batch reactor (sbr) is one of the modified biological treatment systems which is able to remove bod5, nitrogen, and phosphorus from wastewater. the object of this study is to determine the removal efficiency of nitrogen, phosphorus, and heavy metals from municipal wastewater by the advanced sbr system. methods: this descriptive-analytical and cross-sectional study was c...

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