The characterization of landfill leachate has been well established. However, its biodegradation properties have not been well reported. Therefore, this research was undertaken to investigate the biodegradability of semi-aerobic sanitary landfill and the ratio of the biological oxygen demand (BOD) to chemical oxygen demand (COD) BOD5/COD, COD fraction on leachate from Pulau Burung landfill Site...

Wastewater from a pharmaceutical formulation facility (TevaKS, Israel) was treated with a biological activated-sludge system followed by ozonation. The goal was to reduce the concentrations of the drugs carbamazepine (CBZ) and venlafaxine (VLX) before discharging the wastewater to the municipal wastewater treatment plant (WWTP). Both drugs were detected at extremely high concentrations in TevaK...

A comparative study on the water quality of interstitial two creeks in Rivers State was conducted. Temperature, pH, Conductivity, Dissolved oxygen, biochemical oxygen demand, Salinity, and Total dissolved solid were checked with an in-situ hand-held multi-meter (The EZODO Multi-meter). (DO) measured a Milwaukee meter while Biochemical Oxygen Demand (BOD) determined by 5-day BOD test (APHA, 2005...

In December of 2019, a total 114 river water samples were collected from 38 sampling sites in the Xiujiang River Poyang Lake Basin for three consecutive days. The temperature (T), pH, dissolved oxygen (DO), chemical demand (CODCr), five-day biochemical (BOD5), nitrogen (TN), ammonia (NH4+-N), phosphorus (TP), and concentrations heavy metals (Cr, Cu, Zn As) measured. results showed that average ...

In the recent past, artificial neural networks (ANNs) have shown the ability to learn and capture non-linear static or dynamic behaviour among variables based on the given set of data. Since the knowledge of internal procedure is not necessary, the modelling can take place with minimum previous knowledge about the process through proper training of the network. In the present study, 12 ANN base...

Carboxymethyl-quaternized oligochitosan (CMQAOC) was prepared through carboxymethylization and N-quaternization of oligochitosan (OC) which was obtained from chitosan degradation. The structure was confirmed by Fourier transform infrared spectroscopy (FT-IR), H-NMR, and X-ray diffraction (XRD) analysis. The performances for both scale and microbial inhibition of CMQAOC were evaluated by static ...

Household wastewater is a problem, especially in areas with dispersed settlement where there no collection system or treatment plant. In this case, it necessary to build local onsite This paper an attempt analyse the possibility of using recycled shredded ABS plastic (acrylonitrile butadiene styrene) as packing media experimental vertical flow filter for use on-site plants. Studies have shown t...

Reusing greywater (GW) can lower domestic water consumption. However, the GW must be treated and disinfected for securing user health. This research studied at laboratory scale, in flow-through setups, which are generally used full-scale treatment disinfection efficiency of two commonly technologies (a) chlorination (b) low-pressure UV irradiation. The methods were under a found range total sus...

Organic compounds present in the bleached kraft pulp mill (BKPM) effluents may be reduced by biological treatment like: activated sludge (AS) or aerated lagoon (AL). However, after biological treatment, BKPM effluent still contains specific compounds. Some of them have been related with chronic effects (DNA damage, reproductive and physiological) observed on fishes exposed to BKPM effluents. Th...