Results 21 to 30 of about 61,729 (257)

Characterization and Study of Correlations among Major Pollution Parameters in Textile Wastewater [PDF]

Mehran University Research Journal of Engineering and Technology, 2011
Wastewater characterization is an integral part of treatment and management strategies for industrial effluents. This paper outlines the results of detailed wastewater characterization studies conducted for a textile mill in Lahore, Punjab.
Sajjad Haydar, Amna Bari
doaj  

Prediction of dissolved oxygen in Surma River by biochemical oxygen demand and chemical oxygen demand using the artificial neural networks (ANNs)

Journal of King Saud University: Engineering Sciences, 2017
The objective of this study is to develop a feed forward neural network (FFNN) model and a radial basis function neural network (RBFNN) model to predict the dissolved oxygen from biochemical oxygen demand (BOD) and chemical oxygen demand (COD) in the ...
A.A. Masrur Ahmed
doaj   +1 more source

Predicting Optimum Dilution Factors for BOD Sampling and Desired Dissolved Oxygen for Controlling Organic Contamination in Various Wastewaters

International Journal of Chemical Engineering, 2022
High biochemical oxygen demand (BOD) concentrations in water minimize oxygen availability, damage ecosystem biodiversity, impair water quality, and spoil freshwater.
Hisham A. Maddah
doaj   +1 more source

Soil Organic Matter and its Stability in Aerobic and Anaerobic Conditions

Soil and Water Research, 2006
In eight samples of organic and organomineral surface horizons we studied the stability of soil organic matter in aerobic and anaerobic conditions expressed by the rate constant of its biochemical oxidation, total biochemical oxygen demand, substrate ...
Ladislav Kolář, Rostislav Ledvina, Stanislav Kužel, František Klimeš, Pavel Štindl   +4 more
doaj   +1 more source

The Ability of Dissolved Oxygen and Biochemical Oxygen Demand Parameters to Self-purify in the Garang River

Jurnal Presipitasi, 2021
Garang River is administratively located in Semarang Regency, Kendal Regency, and Semarang City. Population growth and the number of community activities around the river can affect the water quality of the Garang River.
Junaidi Junaidi, Ika Bagus Priyambada, Nindya Venoreza   +2 more
doaj   +1 more source

Water hyacinth biochar for trivalent chromium adsorption from tannery wastewater

Environmental and Sustainability Indicators, 2020
This investigation studied the utilization of water hyacinth (Eichhornia crassipes) as biochar for adsorption of trivalent chromium ion. The prepared biochar has been characterized by Fourier transforms infrared spectroscopy (FTIR) before and after the ...
Md Abul Hashem, Mehedi Hasan, Md Abdul Momen, Sofia Payel, Md Sharuk Nur-A-Tomal   +4 more
doaj   +1 more source

Levels of Organic Pollution Indicators in Groundwater at the Old Landfill and Waste Management Site

Applied Sciences, 2017
The aim of this paper was to assess groundwater quality in a landfill and waste management site, with special regard to levels of organic pollution indicators: chemical oxygen demand (COD), biochemical oxygen demand (BOD), and total organic carbon (TOC).
Eugeniusz Koda, Anna Miszkowska, Anna Sieczka   +2 more
doaj   +1 more source

The Biochemical Oxygen Demand of Sewages. [PDF]

Journal of Industrial & Engineering Chemistry, 1914
n ...
openaire   +1 more source

First-order mass balance models of COD, BOD and DO in a subsurface flow constructed wetland

Desalination and Water Treatment
This study addresses the need for simple and cost-effective predictive models for the design and operation of constructed wetlands in domestic wastewater treatment.
Rainier V. Sánchez C., Vladimir Antonio Rodríguez Núñez, Atuey de Jesús Martínez Durán, José Ángel Vásquez Cuello   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source