بررسی فلزات سنگین در پساب و لجن تصفیه خانه فاضلاب شهری گرگان

بررسی میزان فلزات سنگین در لجن آبگیری شده تصفیه خانه فاضلاب ساری

Background and purpose: Dewatered sludge of sewage treatment plants can be used in agriculture if required standards are followed. Heavy metals are among the chemical pollutants that are hazardous to health. Therefore, the aim of this study was to investigate the amount of heavy metals in dewatered sludge of municipal wastewater treatment plant and compare that with the standards and sludge of ...

بررسی تولید پلیمرPHA از لجن تصفیه خانه فاضلاب شهری و تاثیر آن بر کاهش حجم لجن

Backgrounds and Objectives:Owing to the fact that the major environmental problem is production of surplus sludge in wastewater treatment plant, reducing the volume of produced sludge was objective of this research.Materials and Methods: An anaerobic-aerobic SBR with working volume of 10 L was used to make micro-organism adapted and a polymer production reactor (PPR) with working volume of 1.5 ...

بررسی کارائی نانوذرات اکسید آهن جهت تصفیه پیشرفته پساب تصفیه خانه فاضلاب شهری

Background and purpose: Municipal wastewater treatment plant effluents are amongst the main available water sources. Reuse of these effluents requires further standards beyond secondary standards. Therefore, removal of organic pollutants and some compounds such as nitrate and phosphate from effluents should be done at a greater extent. In this study, removal of these compounds from secondary ef...

بررسی استفاده مجدد از پساب و لجن تصفیه خانه فاضلاب در فضای سبز شهر (مطالعه موردی تصفیه خانه فاضلاب شهر اهواز)

بررسی کارایی و عملکرد تصفیه خانه فاضلاب شهری و بیمارستانی در حذف ترکیبات استروژنی از پساب

Background and purpose: Estrogen is a steroid hormone that enters water sources through urban and hospital waste water and is a serious threat to aquatic organisms, especially fish, and human health. The aim of this study was to evaluate the performance of municipal and hospital waste water treatment, especially biological treatment in removal of estrogenic compounds. Materials and methods: ...

بررسی کیفیت میکروبی لجن دفعی از تصفیه خانه های فاضلاب شهری

Background and Objectives: Qualitative evaluation of sewage sludge before any kind of application is essential. The present study was aimed to investigate Total coliform, Fecal coliform and Salmonella in sewage sludge produced at wastewater treatment plants in Azerbaijan Province, Iran. Materials and Methods: Nine wastewater treatment plants were chosen in East Azerbaijan Province, and their...