In the monitoring of pollutants in an aquatic environment, it is important to preserve water quality safety. Among the available analysis methods, the microbial fuel cell (MFC) sensor has recently been used as a sustainable and on-line electrochemical microbial biosensor for biochemical oxygen demand (BOD) and toxicity, respectively. However, the effect of the background organic matter concentr...

The present work aimed to evaluate the osmotic conditioning and shading on the germination and on the initial growth of aroeira seedlings. The seeds were pre-imbibed in solutions with different concentrations of PEG (polyethylene glycol) and KNO3 and incubated at 10°C and 20°C temperatures, during 0 (control), 12 and 24 hours. After these periods, the seeds were dried until they reached the ini...

The dilution biochemical oxygen demand (BOD) test has widespread application for design and operation of wastewater treatment processes, evaluating the quality of natural waters, and assessing the effect of wastewater discharges on these waters. While standardization of the BOD-measuring method has become of prime importance in maintaining dependable data acquisition, changes are made as needed...

The efficiency in treatment of treated wastewater from up-flow anaerobic sludge blanket (UASB) plant using Wolffia arrhiza coupling with storage starch production from its cell are considered. The experiments were undertaken in batch bioreactor and treated wastewater from UASB was fed into the tank and completed with the control conditions of temperature (30 ̊C), light strength (2000 lx) and lig...

This paper examines potential uses of naturally growing aquatic plants for wastewater purification. These plants enhance the removal of pollutants by consuming part of them in the form of plant nutrients. This applies to urban and agricultural wastewater, in particular, where treatment units of different sizes can be applied at the pollution source. The effectiveness of wastewater purification ...

The present investigation provides data on physico-chemical parameters, some major ions and nutrients on water samples of Tinishu Akaki River (TAR), Ethiopia. The pH, temperature, electrical conductivity, total dissolved solids (TDS), dissolved oxygen (DO), chemical oxygen demand (COD), biological oxygen demand (BOD), Ca2+, Mg2+, HCO3-, SO42-, NO3-, NO2-, PO43-, Cland NH3 have been determined t...

This paper aimed to classify the quality of different water sources in Kerala. All major rivers, lakes, and reservoirs are included this study. The is classified into classes based on level pH, Biochemical Oxygen Demand (BOD), Dissolved Oxygen, Electrical Conductivity, concentration Total Coliforms sample. For classification purposes, models proposed. Among these models, Naïve Bayes scored 78.7...

Fecal contamination and organic pollution of an agricultural drainage in northeast Indiana was high. Bacterial counts (total coliform, TC; fecal coliform, FC; and fecal streptococcus, FS) and biochemical oxygen demand (BOD) were used to assess waste concentrations. Coliform counts indicated that sections of the drainage receiving septic effluent had waste concentrations far in excess of public ...

The biological oxygen demand (BOD) test is widely used in many wastewater treatment plants. The conventional BOD tests are usually time-consuming and the results are often out of date for process control purposes. The aim of this research was to compare the manometric respirometric test with common chemical methods in the determination of BOD of wastewater from a pulp and paper mills as well as...

Abstract This paper evaluates the performance of a subsurface flow constructed wetland at Worms Germany used for treatment black and grey water from non-residential facility. Snap samples four wells made up clarifying unit, an activated carbon unit aeration were analysed insitu using HACH HQ40d multimeter exsitu Sensafe metals check strips preliminary metal detection onsite. bar code reagents, ...