نتایج جستجو برای: bod biochemical oxygen demand
تعداد نتایج: 478930 فیلتر نتایج به سال:
The aim of this study was to assess the environmental impact of socio-cultural practices on the water quality of River Ganga at the foothills of the Garhwal Himalayas in Uttarakhand State, India. The physico-chemical parameters that contributed to the temporal variation and pollution in the river were identified in this study. Principal component analysis (PCA) and Cluster analysis (CA) were us...
wastewater of hospitals can cause many risks to public health due to having a variety of pathogenic microorganisms, pharmaceutical substances, and other hazardous toxic substances. the aim of this study was to evaluate the chemical quality of effluents from wastewater treatment plant of falsafi hospital and hakim jorjani hospital in gorgan, iran, and to compare them technically and economically...
Waste containing dyes causes visual pollution and increase the risk of environmental health issue. The aim this study was to determine best operating conditions jumputan liquid waste treatment using bottom ash batubara agar wood with variations in feed flow rate (1, 2, 3 l/min), filtration time (30, 60, 90, 120 mins), treatment. results are compared parameters Biochemical Oxygen Demand (BOD), C...
Liquid waste from batik industry often causes environmental problems, because there is a pollutant content of Biochemical Oxygen Demand (BOD). Corn cobs and husks contain high cellulose which has the potential to become activated carbon. This study aims analyze bioadsorbent mixture corn in reducing BOD levels wastewater. type research pre-experimental, design One Group Pretest Posttest Design. ...
Water quality issues had been the main concern in worldwide as water resource keeps being polluted. River acts source of drinking water, habitat for aquatic life, agriculture and industry. Poor led to increase n treatment expenses, scarcity affect health. pollution is caused by industrial discharge, sewage wastewater, chemical fertilizers pesticides mining activities. This paper aims review com...
Introduction and Purpose: The quantity and quality of industrial wastewater is variable owing to the different lines of production and product variety of industry. Meeting the effluent standards requires proper environmental management. The current study aimed to evaluate the industrial wastewater management in Savojbolagh, Alborz, Iran from an environmental pe...
پساب تولیدی کارخانه صابون‌سازی خرمشهر به‌عنوان بزرگترین و پیشرفته‌ترین کارخانه تولید صابون و گلیسرین ایران با ظرفیت تولید روزانه 100 تن چیپس صابون و 14 تن گلیسرین از طریق کانالی به‌طور مستقیم به رودخانه کارون تخلیه می گردد. با توجه به امکانات موجود ، نمونه‌برداری از 3 ایستگاه به‌ترتیب در 50 متری بالادست محل تخلیه پساب کارخانه ، 50 و 500 متری پایین دست محل تخلیه پساب بهمراه پساب خروجی و در 10 ما...
مقدمه : روش‌های طبیعی تصفیه فاضلاب از جمله وتلندها برای کشورهای در حال توسعه به خصوص شهرهای کوچک و دور افتاده ساده، ارزان و قابل قبول می‌باشد. هدف از این مطالعه بررسی کارایی گیاه لویی در تالاب مصنوعی زیرسطحی در تصفیه فاضلاب شهری یزد بود. روش‌ها: مطالعه حاضر یک پژوهش آزمایشگاهی است. در آن کارایی گیاه لویی به روش تالاب زیرسطحی در حذف پارامترهای PO 4 -P ، NH 3 -N ، NO 3 -N ، TSS ( Total su...
Source apportionment of river water pollution is critical in water resource management and aquatic conservation. Comprehensive application of various GIS-based multivariate statistical methods was performed to analyze datasets (2009-2011) on water quality in the Liao River system (China). Cluster analysis (CA) classified the 12 months of the year into three groups (May-October, February-April a...
In this work, we present the result of an electric coagulation process with iron and aluminum electrodes for removal of chemical and biological oxygen demand (COD and BOD) from grey water in different car washes of Ahvaz, Iran. Nowadays, one of the important dangerous that can contaminate water resources for drinking, agriculture and industrial is Car wash effluent [1,2]. In this study, initial...
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