Assessment of land occupation of municipal wastewater treatment plants in China

2018 ◽  
Vol 4 (12) ◽  
pp. 1988-1996 ◽  
Author(s):  
Yan He ◽  
Yishuang Zhu ◽  
Jinghan Chen ◽  
Minsheng Huang ◽  
Guohua Wang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Land Resources ◽  
Municipal Wastewater Treatment ◽  
Land Occupation ◽  
Municipal Wastewater Treatment Plants ◽  
Management Issues

The tense deficiency of available land resources is becoming one of the bottlenecks in dealing with wastewater treatment plant (WWTP) management issues.

scholarly journals The Renewable Energy Sources for Municipal Wastewater Processes in Thailand: A Case Study of the Nonthaburi Wastewater Treatment Plant

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Krittiya Lertpocasombut ◽  
Sayan Sirimontree ◽  
Boonsap Witchayangkoon ◽  
Chanachai Thongchom ◽  
Veronica Winoto ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Renewable Energy Sources ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Alternative Sources ◽  
Municipal Wastewater Treatment Plants

Abstract There are 101 municipal wastewater treatment plants in Thailand supplied with electricity and cannot collect wastewater treatment fees. Alternative sources of energy for municipal wastewater treatment would reduce the electricity costs and future fossil energy uses. The Nonthaburi wastewater treatment plant (WWTP) is located in the Northwest of Bangkok and selected due to its available data. The solar energy source is applied to the Nonthaburi WWTP due to the light intensity and the area to install. By comparing to the wind and the biogas sources, the wind speed and the sludge production are not sufficient, respectively. Besides the estimated installation cost of the solar-cell panels among three companies, the NPV of 25 years and the IRR of three percent rate, the area required for installation is an affecting factor for the plant consideration.

Integrated Wastewater Treatment Plant Performance Evaluation Using Artificial Neural Networks

1999 ◽  
Vol 40 (7) ◽  
pp. 55-65 ◽  
Author(s):  
Mohamed F. Hamoda ◽  
Ibrahim A. Al-Ghusain ◽  
Ahmed H. Hassan
Keyword(s):  
Neural Networks ◽  
Wastewater Treatment ◽  
Artificial Neural Networks ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Plant Performance ◽  
Municipal Wastewater Treatment ◽  
Artificial Neural

Proper operation of municipal wastewater treatment plants is important in producing an effluent which meets quality requirements of regulatory agencies and in minimizing detrimental effects on the environment. This paper examined plant dynamics and modeling techniques with emphasis placed on the digital computing technology of Artificial Neural Networks (ANN). A backpropagation model was developed to model the municipal wastewater treatment plant at Ardiya, Kuwait City, Kuwait. Results obtained prove that Neural Networks present a versatile tool in modeling full-scale operational wastewater treatment plants and provide an alternative methodology for predicting the performance of treatment plants. The overall suspended solids (TSS) and organic pollutants (BOD) removal efficiencies achieved at Ardiya plant over a period of 16 months were 94.6 and 97.3 percent, respectively. Plant performance was adequately predicted using the backpropagation ANN model. The correlation coefficients between the predicted and actual effluent data using the best model was 0.72 for TSS compared to 0.74 for BOD. The best ANN structure does not necessarily mean the most number of hidden layers.

scholarly journals Response of macrobenthic communities to changes in water quality in a subtropical, microtidal estuary (Oso Bay, Texas)

2020 ◽  
Vol 1 ◽  
Author(s):  
Kevin de Santiago ◽  
Terence A. Palmer ◽  
Michael S. Wetz ◽  
Jennifer Beseres Pollack
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Nutrient Loading ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Spatial Changes ◽  
Municipal Wastewater Treatment Plants ◽  
Highly Correlated ◽  
Limited Water Exchange

AbstractThe influence of nutrient loading and other anthropogenic stressors is thought to be greater in low inflow, microtidal estuaries, where there is limited water exchange. This 11-month study compared spatial changes in macrofaunal communities adjacent to regions that varied in land cover in Oso Bay, Texas, an estuarine secondary bay with inflow dominated by hypersaline discharge, in addition to discharge from multiple municipal wastewater treatment plants. Macrofauna communities changed in composition with distance away from a wastewater treatment plant in Oso Bay, with the western region of the bay containing different communities than the head and the inlet of the bay. Ostracods were numerically dominant close to the wastewater discharge point. Macrobenthic community composition is most highly correlated with silicate concentrations in the water column. Silicate is negatively correlated with salinity and dissolved oxygen, and positively correlated with nutrients within the bay. Results are relevant for environmental management purposes by demonstrating that point-source discharges can still have ecological effects in hydrologically altered estuaries.

scholarly journals Opportunities for microbial electrochemistry in municipal wastewater treatment – an overview

2014 ◽  
Vol 69 (7) ◽  
pp. 1359-1372 ◽  
Author(s):  
Oskar Modin ◽  
David J. I. Gustavsson
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Energy Content ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Treatment Processes ◽  
Municipal Wastewater Treatment Plants ◽  
And Control ◽  
The Impact

Microbial bioelectrochemical systems (BESs) utilize living microorganisms to drive oxidation and reduction reactions at solid electrodes. BESs could potentially be used at municipal wastewater treatment plants (WWTPs) to recover the energy content of organic matter, to produce chemicals useful at the site, or to monitor and control biological treatment processes. In this paper, we review bioelectrochemical technologies that could be applied for municipal wastewater treatment. Sjölunda WWTP in Malmö, Sweden, is used as an example to illustrate how the different technologies potentially could be integrated into an existing treatment plant and the impact they could have on the plant's utilization of energy and chemicals.

Recirculation of powdered activated carbon for the adsorption of dyes in municipal wastewater treatment plants

1999 ◽  
Vol 40 (1) ◽  
pp. 191-198 ◽  
Author(s):  
L. Nicolet ◽  
U. Rott
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Great Part ◽  
Treatment Plant ◽  
Powdered Activated Carbon ◽  
Municipal Wastewater Treatment ◽  
Positive Side ◽  
Municipal Wastewater Treatment Plants

The use and recirculation of powdered activated carbon (PAC) as an advanced treatment for colour removal in municipal wastewater treatment plants is presented. Studied wastewaters consist of domestic effluents with a high portion of dyehouse residual waters. The particularity of the treatment is that PAC is not disposed of before being recirculated several times. Therefore, it enables the use of a great part of the total adsorption capacity of the PAC. A positive side effect is that halogenated and refractory organic compounds, which are not degraded by micro-organisms in a conventional municipal wastewater treatment plant, are removed too. This paper describes results which were obtained in batch experiments and in a pilot plant during two years of observation, and concludes with advantages and drawbacks of this technology.

scholarly journals Design of wastewater treatment plant and nutrients recovery

2021 ◽  
Author(s):  
Ashish Kumar Gupta
Keyword(s):  
Wastewater Treatment ◽  
Literature Review ◽  
Wastewater Treatment Plant ◽  
Cost Estimation ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Cost Savings ◽  
Capital Cost ◽  
Municipal Wastewater Treatment

The objective was to design a municipal wastewater treatment plant with primary sedimentation and without primary sedimentation and then compare the savings in capital cost. The project discussed the design procures for the various units such as preliminary units, secondary units and tertiary units. The parametric cost estimation concept is utilized to arrive at the capital cost savings. The literature review includes the various methods to recover the nutrients from the wastewater. The literature review also includes various measures to be taken for performance improvement of municipal wastewater treatment plants. This project concludes that capital cost savings of about twenty percent can be achieved by not providing the primary sedimentation.

scholarly journals SARS-CoV-2 in Municipal Wastewater Treatment Plant, Collection Network and Hospital Wastewater

2021 ◽  
Author(s):  
Chiman Karami ◽  
Abdollah Dargahi ◽  
Mehdi Vosoughi ◽  
Ali Normohammadi ◽  
Farhad Jalali ◽  
...  
Keyword(s):  
Public Health ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Hospital Wastewater ◽  
Municipal Wastewater Treatment ◽  
Plant Collection ◽  
Sampling Duration

Abstract The current outbreak of coronavirus disease (COVID-19) has led to creating a public health emergency conditions since 2019. COVID-19, which is caused by SARS-CoV-2, is spread via human-to-human transmission by direct contact or droplets. Through conducting this study, we were looking for detecting SARS-CoV-2 in wastewater produced in Iran country (Ardabil, Nir, Khalkhal and Givi) (wastewater collection network, wastewater treatment plant and hospital wastewater). In this research, samples (n = 76) were collected from influent and effluent of municipal and hospital wastewater treatment plants and some samples were also collected from Ardabil municipal wastewater manholes. The sampling duration included the white (lower risk of covid-19) and red (high risk of covid-19) conditions. Samples were stored at -20°C for further diagnostic tests. Out of 76 samples, a total of 16 samples (21.05%) collected from wastewater in Ardabil province (Ardabil, Nir, Khalkhal, and Givi), were positive in terms of SARS-CoV-2. Wastewater epidemiology can facilitate detection of the incidence of pathogens through metropolises, measurement of population prevalence without direct testing, and provision of information to public health system about the efficiency of intervening efforts.

scholarly journals Odour measurement in wastewater treatment plant using both European and Japanese standardized methods: correlation and comparison study

2016 ◽  
Vol 18 (4) ◽  
pp. 728-733 ◽  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
International Standards ◽  
Municipal Wastewater Treatment ◽  
Odour Concentration ◽  
High Concentrations ◽  
The University

<p>Odours discharged from wastewater treatment plants generally cause severe damage to locals. When facility odors affect air quality and cause citizen complaints, an investigation of those odours may require using standardized scientific methods. Odour intensity is one of the main odour characterization parameter, and represents an important sensory indicator of environmental odours.</p> <p>Presently, different international standards have been developed for the measurement of odours. Main consolidated methods are the measurement of odour index assessed by panelists, standardized in Japan and developed there more than 40 years ago; and the measured of odour concentration by dynamic olfactometer according to European standard EN13725:2003.</p> <p>In this study odour samples were collected on a municipal wastewater treatment plant to investigate the relationship between odour index assessed by Japanese standard methods and odour concentration measured with dynamic olfactometry. A monthly sampling and relative odour measurement were carried out for consecutive 8 months at the Laboratory of the Sanitary Environmental Engineering Division (SEED) at the University of Salerno (Italy).</p> <p>Results show a strong linear correlation between the two investigated odour measurement methods, in the case of the measurement of high concentrations. While at lower odour concentrations were observed a difference between the two methods.</p>

Operational Conditions and Improvement Methods of Municipal Wastewater Treatment Plants under Low Temperatures in Northern China

2010 ◽  
Vol 113-116 ◽  
pp. 651-654
Author(s):  
Ben Chao Jiang ◽  
Fang Ma ◽  
Li Wei ◽  
Jing Bo Guo ◽  
Ang Li
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Low Temperatures ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Northern China ◽  
Municipal Wastewater Treatment ◽  
Operational Conditions ◽  
Municipal Wastewater Treatment Plants

The minimum temperature in winter is under -30oC in the northern hilly regions. It is harmful for the municipal wastewater treatment in winter. According to previous reports, the effects caused by the low-temperature in municipal wastewater treatment plant are summarized, and improvements are put forward. Improving the efficiencies of municipal wastewater treatment is essential and significant in the northern hilly regions.

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