Comparison of F-specific bacteriophage, enterococci, and faecal coliform densities through a wastewater treatment process employing oxidation ponds

1995 ◽  
Vol 31 (5-6) ◽  
pp. 85-89 ◽  
Author(s):  
S. J. Turner ◽  
G. D. Lewis
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Faecal Coliform ◽  
Indicator Organisms ◽  
Faecal Coliforms ◽  
Wastewater Treatment Process ◽  
Oxidation Pond ◽  
Oxidation Ponds ◽  
Specific Bacteriophage

Over a 12 month period F-specific bacteriophages, faecal coliforms and enterococci were compared as microbial indicator organisms for the quality of a wastewater treatment (oxidation pond) system. Results suggest that enterococci may be the most useful indicator for oxidation pond systems.

Biomonitoring and its in the assessment of the quality of wastewater treatment process

2020 ◽  
Vol 13 ◽  
pp. 100292
Author(s):  
Helena Hybská ◽  
Martina Lobotková ◽  
Miroslav Vanek ◽  
Jozef Salva ◽  
Ivana Knapcová ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Wastewater Treatment Process

A MATHEMATICAL MODEL FOR WASTEWATER TREATMENT PROCESS OF AN OXIDATION POND

2016 ◽  
Vol 78 (3-2) ◽  
Author(s):  
Amir S. A. Hamzah ◽  
Akbar Banitalebi ◽  
Ali H. M. Murid ◽  
Zainal A. Aziz ◽  
Hasniza Ramli ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Wastewater Treatment ◽  
Dissolved Oxygen ◽  
Treatment Process ◽  
Oxygen Demand ◽  
Wastewater Treatment Process ◽  
Oxidation Pond ◽  
Coupled Equations ◽  
Proposed Model ◽  
The Mathematical Model

This study presents a mathematical model for wastewater treatment process (WWTP) of an oxidation pond. The model permits investigating the effects of a biological-based product called mPHO on the degradation of contaminants as well as increase the amount of dissolved oxygen (DO) in the pond. At this aim, an ordinary differential equation with coupled equations has been developed to study the correlation between the amount of bacteria (phototrophic and Coliform), chemical oxygen demand (COD), and dissolved oxygen (DO) existing in the pond. The mathematical model is employed to simulate the behaviour of the system where the numerical results demonstrate that the proposed model gives a good approximation of the interaction processes that occur naturally between biological and chemical substances involved in the pond

scholarly journals Wastewater Treatment Process: A Modified Mathematical Model for Oxidation Ponds

2021 ◽  
Vol 86 (1) ◽  
pp. 76-86
Author(s):  
Syafiqah Hanis Mohd Fauzi ◽  
Norazaliza Mohd Jamil
Keyword(s):  
Mathematical Model ◽  
Wastewater Treatment ◽  
Treatment Process ◽  
Oxygen Demand ◽  
Wastewater Treatment Process ◽  
Modified Model ◽  
Monod Equation ◽  
Runge Kutta Method ◽  
Oxidation Ponds ◽  
Wastewater Pollutants

Wastewater treatment aims to eliminate as many suspended solids as possible from the remaining water, known as effluent, before it is released into the environment. Pond oxidation methods have been practically proven successful for the wastewater treatment process because of their low construction and maintenance costs. This study aimed to investigate the degradation of wastewater pollutants through an oxidation pond treatment system. The purpose was to observe the relationship between the concentration of bacteria which are phototrophic and coliform, chemical oxygen demand (COD), and dissolved oxygen (DO). In this paper, a modified model consist of a set of an ordinary differential equation (ODE) has been developed by incorporating the Monod Equation. The model was solved numerically using the 4th order Runge Kutta method embedded in the MATLAB software. The sum of squared estimate of errors (SSE) for the modified model was compared with the SSE of the existing model. The results revealed that the modified model demonstrated a lower SSE compared to the existing model. Thus, the modified mathematical model gives better result than the existing model. The model provides an excellent approximation for concentration needed for an oxidized pond to produce good water quality.

Design of Reconstruction and Extension Projects of the Wastewater Plant of an Ordnance Repairing Factory

2011 ◽  
Vol 413 ◽  
pp. 144-147
Author(s):  
Jing Miao Li ◽  
Chen Liang
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Primary Treatment ◽  
Operating Conditions ◽  
Wastewater Treatment Process ◽  
Original Process ◽  
Guangzhou City ◽  
Effluent Quality ◽  
Total Treatment

In order to improve the treatment capacity and effluent quality of the wastewater plant of an ordnance repairing factory in Guangzhou City, China. The wastewater treatment process was modified and the construction was extended. The factory mainly repairs military equipments in air force, discharges 1200 m3/d wastewater .The current operating conditions of original wastewater treatment equipments are unstable and the effluent quality is substandard, and that the capacity is inadequate.By upgrading the technology and tapping the potential of original process, enlarge the primary treatment capacity to 500 m3/d and build another treatment process with the treatment capacity of 700 m3/d.The total treatment capacity is adequate and effluent quality meet the demands of criteria A specified in DB44/26-2001 of Guangzhou.

scholarly journals Influence of extraneous waters on the quality and loads of pollutants in wastewater discharged into the treatment plant

2017 ◽  
Vol 33 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Grzegorz B. Kaczor ◽  
Krzysztof Chmielowski ◽  
Piotr Bugajski
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Treatment Plant ◽  
Pollutant Concentration ◽  
Wastewater Treatment Process ◽  
Pollutant Load ◽  
Sewerage System ◽  
Pollutant Concentrations ◽  
Rainy Weather

Abstract The aim of the study was to analyze an influence of an inflow penetrating into two selected small sewerage systems during a rainy weather on pollutant concentration and load in raw sewage. Studies were conducted in 2010–2015 on two small sewerage systems in Małopolska province. The studies confirmed that the inflow penetrating into the sewerage systems resulted in a decrease of pollutant concentrations in sewage. However, they also showed that this dilution was not constant for all types of pollutants. The most important outcome of the study was demonstrating that despite its diluting effect on pollutants, the intense inflow into a sewerage system resulted in an increase of a sewage pollutant load. This increase was not regular, but it was rising dramatically when the inflow share in sewage exceeded 50%. The study indicated that the inflow penetrating into the sewerage system should not be disregarded, as it actually presented a significant threat to the wastewater treatment process and in consequence to the quality of recipient waters.

scholarly journals Modeling of microbial approach in wastewater treatment process: A case study of mPHO in Taman Timor oxidation pond, Johor, Malaysia

2016 ◽  
Author(s):  
Amir S. A. Hamzah ◽  
Ali H. M. Murid ◽  
Zainal A. Aziz ◽  
Akbar Banitalebi ◽  
Hazzarita Rahman ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Wastewater Treatment Process ◽  
Oxidation Pond

Variation in water density related to pollutants removal in wastewater treatment processes and its use in explaining the working principles of the Unifed SBR

2016 ◽  
Vol 74 (9) ◽  
pp. 2010-2020
Author(s):  
Liancheng Xiang ◽  
Junqi Wu ◽  
Yonghui Song ◽  
Ruixia Liu ◽  
Huibin Yu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Treatment Process ◽  
Wastewater Treatment Plants ◽  
Batch Reactor ◽  
Tracer Tests ◽  
Municipal Wastewater Treatment ◽  
Water Density ◽  
Wastewater Treatment Process

The wastewater quality of several municipal wastewater treatment plants (MWTPs) in Beijing was studied, and the water densities of different processing units were also measured during the wastewater treatment process. The results clearly showed that the water density declined from influent to effluent of the wastewater treatment process. Meanwhile, the variation in water density had good statistical correlation with the concentrations of total organic carbon, total phosphorus, suspended solids and total solids. Furthermore, the variation in water density could be used to explain the working principles of the Unifed sequencing batch reactor (SBR). Tracer tests were conducted in the Unifed SBR to investigate the hydraulic characteristics of the reactor. The experimental results showed that the variable values of water density from influent to effluent in the Fangzhuang MWTPs were greater than those caused by the temperature difference of >3 °C between the influent and the liquid in the reactor at 13 °C. Moreover, the flow regime of wastewater in the Unifed SBR was affected by the variation in water density, which may lead to stratification or a density current. Ascribed to the appearance of stratification in the Unifed SBR reactor, the water quality of the effluent could not be affected by that of the influent.

scholarly journals DISPOSAL ALCOHOL WASTEWATER WITHOUT USING THERMAL TREATMENT

2020 ◽  
Vol 2020 (1) ◽  
pp. 43-44
Author(s):  
Vadim Krutikov ◽  
Ivan Semenov ◽  
Dmitriy Dubrovskiy
Keyword(s):  
Wastewater Treatment ◽  
Thermal Treatment ◽  
Treatment Process ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Biological Wastewater Treatment ◽  
Wastewater Treatment Process ◽  
The Cost

The possibility of withdrawing alcohol wastewater from thermal treatment to a sewage treatment plant was considered in this article. These measures can reduce the cost of fuel used for thermal treatment, as well as improve the quality of the biological wastewater treatment process

Sign in / Sign up

Export Citation Format

Share Document