scholarly journals Sustainable Control Strategy for Detecting Activated Toxins in Sewage Management and Waste Water

Author(s):  
Jin Xu ◽  
Guang Duan ◽  
Xiujun Lu ◽  
Yan Zhou ◽  
C.B Sivaparthipan ◽  
...  

Abstract The causes of diverse, high realization percentages are the Hospital Sewage, and no appropriate therapy for contaminant elimination has been examined. These pollutants and their complicated properties are immune to the laboratory's wastewater treatment plant (WWTPs). In other sentences, certain dynamic chemicals cannot be eliminated by traditional therapy. Environmental chemical contaminants can pose significant threats to global water supplies. In recent times, the wastewater created from medical services, healthcare facilities and laboratories has become more involved with the atmosphere researchers. A Sustainable Control Strategy for Detecting Activated Toxins (SCS-DAT) model is proposed in this research. For three things - traditional drainage features, major priority drug products, and microbiota studies - this analysis picked several multi-speciality facilities with non-identical pre-treatments. The research review assesses innovative processes' effectiveness for disposing of these three components from treated wastewater before being released into a hazardous water Sewage treatment plant (STP). Regarding the test findings, these two procedures effectively lowered the standard and medication variable of direct and indirect approaches in two out of three treatment methods, MBR and CW, excluding microbe restoration, by following stages. These two substances were found. The results showed 100% ibuprofen, carbamazepine, and frusemide reduction, while CW suggested that ofloxacin was 100% eliminated. The medicines' degradation demonstrated two accelerated oxidation variations, ozonation (O3) and peroxisome (O3-H2O2). pH, O3 availability, time of touch and H2O2 quantities are the main operating variables in AOP. Centred on medicinal products efficacy, traditional O3 treatment is more effective than integrating O3- H2O2 therapy. Therefore, the study proved that MBR combined with ozone proven an ideal technology for the chemical treatment of treated wastewater among several innovations.

2017 ◽  
Vol 1 (1) ◽  
pp. 46-55 ◽  
Author(s):  
Athar Hussain ◽  
Manjeeta Priyadarshi ◽  
Saif Said ◽  
Suraj Negi

Most of the industrial sewage effluents used for irrigation contains heavy metals which cause toxicity to crop plants as the soils are able to accumulate heavy metal for many years. The vegetables grown for the present study were irrigated with treated wastewater brought from a nearby full-scale sewage treatment plant at different compositions along with tap water as a control. The concentration levels of the Cd, Co, Cu, Mn and Zn in the soil were found to below the toxic limits as prescribed in literature. Daily Intake Metals (DIM) values suggest that the consumption of plants grown in treated wastewater and tap water is nearly free of risks, as the dietary intake limits of Cu, Fe, Zn and Mn. The Enrichment Factor for the treated wastewater irrigated soil was found in order Zn> Ni> Pb> Cr> Cu> Co> Mn> Cd. Thus, treated wastewater can be effectively used for irrigation. This will have twofold significant environmental advantages: (1) helpful to reduce the groundwater usage for irrigation and (2) helpful to reduce the stress on surface water resources.


2018 ◽  
Vol 45 ◽  
pp. 00036
Author(s):  
Zbigniew Kowalewski

The process of designing and exploiting municipal sewage treatment plants has become much simpler and more efficient thanks to mathematical modeling. The ASM model family is able to simulate the operation of existing or designed objects in a satisfactory manner. The basic problem in Poland is the insufficient amount of data for simulations coming from plant monitoring. It is provided to create unstable model results with difficulties in calibration and validation. The aim of this article is to confirm how the amount of data and its completeness will affect the quality of the simulation performed in the ASM model. The study object is a sewage treatment plant located in Chicago in the USA. It is a sewage treatment plant operating with activated sludge technology, with regular monitoring of the quality of raw and treated wastewater. For modeling, a variant of the ASM model built into the BioWin 5.2 software was used.


2014 ◽  
Vol 69 (11) ◽  
pp. 2372-2380 ◽  
Author(s):  
Mats Ek ◽  
Christian Baresel ◽  
Jörgen Magnér ◽  
Rune Bergström ◽  
Mila Harding

Pharmaceutical residues, which pass naturally through the human body into sewage, are in many cases virtually unaffected by conventional wastewater treatment. Accumulated in the environment, however, they can significantly impact aquatic life. The present study indicates that many pharmaceutical residues found in wastewater can be removed with activated carbon in a cost-efficient system that delivers higher resource utilisation and security than other carbon systems. The experiment revealed a substantial separation of the analysed compounds, notwithstanding their relatively high solubility in water and dissimilar chemical structures. This implies that beds of activated carbon may be a competitive alternative to treatment with ozone. The effluent water used for the tests, performed over 20 months, originated from Stockholm's largest sewage treatment plant. Passing through a number of different filters with activated carbon removed 90–98% of the pharmaceutical residues from the water. This paper describes pilot-scale tests performed by IVL and the implications for an actual treatment plant that has to treat up to several thousand litres of wastewater per second. In addition, the advantages, disadvantages and costs of the method are discussed. This includes, for example, the clogging of carbon filters and the associated hydraulic capacity limits of the activated carbon.


2020 ◽  
Vol 9 (6) ◽  
pp. 440-446 ◽  
Author(s):  
Said Mohareb ◽  
Abdallah Hadfi ◽  
Ilham Karmal ◽  
Said Ben-Aazza ◽  
M'barek Belattar ◽  
...  

In Agadir city, the reuse of treated wastewater for irrigation of green spaces has faced the problem of scaling of the pipes of these waters. This research paper aims at studying the phenomenon of scaling caused by the treated wastewater from the Mzar sewage treatment plant in the city of Agadir in south-west of Morocco. These waters are used in the irrigation of golf turf “Ocean”. The formation of solid deposits in the irrigation systems has decreased their lifetime, and consequently, a loss of load and performance is occurring. Thus, the sprinklers used in golf turf irrigation are plugged in the first weeks of the beginning of their operation. The wastewater used for the irrigation of the golf was analyzed at various points using physicochemical measurements: in the golf entry, at the tarpaulin and the exit of the sprinklers. The samples of treated wastewater and obtained scale were studied. The characterization of the scale samples formed in the passageways of the treated wastewaters has been performed by X-ray fluorescence spectrometry, X-ray diffraction, thermogravimetric analysis, differential thermal analysis and scanning electron microscopy. The results of the physicochemical analysis of the waters show that they are full of bicarbonates (653 mg/L), chloride (478 mg/L), nitrate (412 mg/L), sodium (425 mg/L) and in calcium (199 mg/L). Their pH is slightly alkaline. The analysis of the scale reveals that it is rich in calcium and phosphorus. It is formed of calcium carbonate (CaCO3), silica (SiO2), calcium silicate (Ca2SiO4), hydroxylapatite (Ca10P6O26H2), calcium carbonate-apatite(Ca10 (PO4) 6CO3) and silicate calcium and magnesium (Ca5MgSi3O12).


2020 ◽  
Vol 6 (11) ◽  
pp. 126-131
Author(s):  
P. Murodov ◽  
O. Amirov ◽  
P. Khuzhaev

The influence of the discharged treated wastewater on the ecology of the Kafirnigan River is considered. The data on the current state of sewage treatment facilities in the city of Dushanbe are given and an assessment of the environmental efficiency of these treatment facilities is given. Preliminary calculations of costs for the construction of a new sewage treatment plant in Dushanbe have been made. The article is devoted to the current problem of cleaning storm sewers. It should be noted that storm water drainage, like wastewater, has a negative impact on the environment. Before the wastewater is disposed of, it is necessary to treat it in a special way, subjecting it to treatment of varying degrees and depths.


2020 ◽  
Vol 20 (3) ◽  
pp. 145-159
Author(s):  
Donat Hansz ◽  
Katarzyna Kowalczewska-Madura

AbstractThe study on a small lowland river was conducted in order to determine changes in water quality under external loading (inflow of treated wastewater, runoff from agricultural areas) and the location of a dam reservoir in its course. The 21 km long River Pogona (Greater Poland, Poland) is a small tributary of the Obra Canal in Kościan. In 2004, in its valley, the Jeżewo Reservoir, with an area of 78 ha, was utilized to supply the flow in the Obra Canal during the dry season and to irrigate agricultural areas. The river is also a receiver of treated sewage from the sewage treatment plant in Karolewo. The research, carried out in 2017 at six sampling stations in its course, showed that the discharge of treated wastewater resulted in an increase in conductivity, concentration of ammonium nitrogen, nitrites and total nitrogen in the waters of the River Pogona. On the other hand, the location of the Jeżewo Reservoir in its course contributed to an increase in water temperature, pH, dissolved oxygen, chlorophyll-a and nitrite concentration in the outflowing river. The results showed that the inflow of treated wastewater from the sewage treatment plant, surface runoff from the catchment area and the Jeżewo Reservoir formed in its course, influenced seasonal and spatial changes in the water quality of the River Pogona.


2018 ◽  
Vol 28 (3) ◽  
pp. 5-16
Author(s):  
Monika Suchowska-Kisielewicz ◽  
Aleksandra Sieciechowicz ◽  
Zofia Sadecka

Abstract In sewage treatment plants for removing nitrogen compounds are used biological processes of nitrification and denitrification. The parameters determining the efficiency of biological processes of nitrogen removal are organic carbon ratio (BOD5) to total Kjeldahl nitrogen (TKN), temperature and pH. The impact of these parameters on the operation of the sewage treatment plant with an RLM of 45,000 based on operational data from the period 2011-2013 has been assessed. The efficiency of removing nitrogen compounds from sewage in the analysed treatment plant depended on the temperature of sewage and the quotient BOD5/TKN. Even at the optimal ranges of BOD5/TKN ratio temperature at 10°C nitrogen concentration in the treated wastewater was about 3 times higher than the limit value, and the removal efficiency of nitrogen varied between about 30 to 60%.


Author(s):  
Prisana Cortêz Dantas ◽  
Joab Vitor Nascimento ◽  
Djair Alves Melo ◽  
Josefa Sousa Freitas ◽  
Mislene Rosa Dantas ◽  
...  

The use of wastewater can be an irrigation alternative for millet, especially in areas with low availability of water, such as the Seridó Paraibano Region. The objective of this work was to evaluate the growth and production of millet irrigated with wastewater under a consortium with lab-lab beans. The experiment was conducted at the Caboré site, in the municipality of Frei Martinho-PB. The experimental design was a randomized complete block design with five plots (40, 60, 80, 100 and 120% of available water) in a consortium with lab-lab bean in the subplot. The treated wastewater came from the Sewage Treatment Plant of the municipality. The variables measured were: height of the plant; leaf area; number of leaves; diameters and SPAD (chlorophyll meter). There was a significant difference in relation to plant growth, leaf area and number of leaves. The stem diameter and SPAD had no significant effect, an average of 11.197 mm / plant and an average of 60.952 units were observed. The millet plants presented high number of leaves and high leaf area when applied to the irrigation blade of 300 mm of wastewater. The consortium of millet X-lab-lab beans did not interfere interfere with the growth of millet.


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