نتایج جستجو برای: bod biochemical oxygen demand

تعداد نتایج: 478930  

Journal: :Jurnal Daur Lingkungan 2022

Tembuku River is one of the tributaries Batanghari in Jambi City which located across Thehok Village to Simpang Lampu Merah Sijenjang-Pasar Kasang. has highest pollution level compared other with BOD value upstream 38,5 mg/l and downstream 86 mg/l, COD 42,5 95 mg/l. This research was conducted analyze pollutant Load Capacity Biochemical Oxygen Demand (BOD) Chemical (COD) that can be received by...

Journal: :Journal of environmental management 2006
Y Zimmels F Kirzhner A Malkovskaja

The effectiveness of sewage purification by aquatic plants, such as water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes), was tested on laboratory and pilot scales. Cascade and semi-continuous pilot experiments verified that the plants are capable of decreasing all tested indicators of water quality to levels that permit the use of the purified water for irrigation of tre...

Fatemeh Amini Fard, Mansoureh Ghaeni, Reza Jalilzadeh Yengejeh,

Background: Due to the high content of nitrogen in the municipal wastewaters, this study evaluated the efficiency of Scenedesmus as an important microalgae in the removal of nitrate from wastewaters and its application as an appropriate culture medium. As algae have high resistance to temperature and pH changes, they can absorb low concentrations of nutrients and need simple low-cost technolog...

Journal: :pollution 2016
rakesh bhutiani d.r. khanna

the idea of systems analysis and mathematical modeling for formulating and resolving river pollution issues is of relatively recent vintage and has been applied widely in the last 3 decades. the present study illustrates the utility of beck-modified khanna–bhutiani model (bmkb) to determine the pollution load due to the presence of organic matter in river ganga from its course from devprayag to...

2013
PARMOD KUMAR

In the present study the aim of investigation is physical and chemical parameters of ground water and soil. By selected Physical and chemical parameters it is found that (1).Biological oxygen demand (BOD) and chemical oxygen demand (COD) are directly proportional to each other where dissolved oxygen (DO) is indirectly proportional to BOD and COD. (2). Total dissolved solids, alkalinity and hard...

2006
J. Polak

Nitrifying activity in the surface water of the Włocławek Dam Reservoir (WDR) was determined by use of a nitrification selective inhibitor (ATU). The highest values of nitrification were observed in the stations nearer the dam, with lower flow velocity, where the activity amounted to up to 120 μg N/dm3/day. Nitrification process [%] involvement in biochemical oxygen demand increased with passin...

2011

The health of a river depends on the quality of its water, which is influenced by the presence of pollutants. The quality of water is generally assessed by a range of parameters, which express physical, chemical and biological composition of water (Meybeck and Helmer 1992). This research deals with some specific water quality parameters of the Buriganga River, which include: temperature, pH, di...

Journal: :international journal of environmental research 2013
n. pattananuwat m. aoki m. hatamoto a. nakamura s. yamazaki

we evaluated the efficacy of a full-scale combined biophysicochemical system for treatingmolasses-based bioethanol wastewater in terms of organic substances, nutrient, and dark brown color removal. the main organic removal unit, i.e., the upflow anaerobic sludge blanket (uasb) reactor, achieved 80.7% removal and 4.3 nm3 methane production per cubic meter of wastewater with a hydraulic retention...

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