A Research on the Efficiency of Hydrolysis-AICS in Sewage Treatment Plant in North-Cities

2015 ◽  
Vol 737 ◽  
pp. 635-638
Author(s):  
Ke Zhao ◽  
Zheng Kong
Keyword(s):  
Waste Water ◽  
Low Temperature ◽  
Removal Rate ◽  
Waste Water Treatment ◽  
National Level ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Urban Sewage ◽  
Cod Removal Rate

The general existing low temperature problem in winter of north-city sewage treatment plant in the process of waste water treatment seriously affect the efficiency of the work. The research objective of this paper is to conduct investigate in the application of AICS method in Jilin Province, a sewage treatment plant engineering example has been employed to monitor the effluent of the indicators of sewage treatment under the low temperature condition during the winter the winter low temperature under the condition of sewage treatment plant effluent of the indicators; to understand the operation situation of sewage treatment plant, and to study the efficiency of hydrolysis - AICS processing waste-water. The result shows that: hydrolysis - AICS process works well in low temperature condition, the per TN removal rate is 76.79%, average removal rate of NH3 - N is 85.76%, average TP removal rate was 93.4%, the average COD removal rate was 90.6%. The effluent meet the national level A discharge standard requirements of "urban sewage treatment plant pollutant discharge standard". And through the retrenchment of the second pond and other ancillary equipment, Hydrolysis-AICS process could efficiently reduce the costs. Besides, the advantages of Hydrolysis-AICS process also include occupying small area, and operating easily and simply. Therefore Hydrolysis-AICS process is very helpful to achieve the sewage discharging standard in the northern towns.

Using ozonation-hydrolysis acidification to the pharmaceutical tail wastewater pretreatment

2015 ◽  
Vol 10 (4) ◽  
pp. 688-694
Author(s):  
Yanjiao Gao ◽  
Runzhu Huang
Keyword(s):  
Removal Rate ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Preliminary Treatment ◽  
Urban Sewage ◽  
Hydrolysis Acidification ◽  
Cod Removal Rate ◽  
High Concentrations ◽  
Tail Water

In order to solve the problems of poor biodegradability and high concentrations of non-biodegradable substances from pharmaceutical wastewater after preliminary treatment, the organic components of the tail water (effluent from the preliminary treatment devises of the pharmaceutical industry wastewater treatment station) were analyzed and the method of ozonation-hydrolysis acidification was used to treat tail water from the pharmaceutical factory. The ozone dosage, the reaction time and the changes of biodegradability were studied. The results measured by GC-MS showed that there were 51 types of organic substances in tail water which reduce the biodegradability. The results of the tests showed that 30 mg/L of ozone and 60-minutes of oxidation time were suitable conditions. In the ozonation–hydrolysis acidification process the COD removal rate ranged from 20% to 50%. The test results showed that the ozonation-hydrolysis acidification method could effectively improve the biodegradability of wastewater and provide the foundation for the follow treatment in urban sewage treatment plant using biological methods.

Experimental Studies of CS Type UV Sterilizer for the Urban Sewage Treatment

2013 ◽  
Vol 361-363 ◽  
pp. 601-605
Author(s):  
Ji Ku Zhang ◽  
Yang Yang Li ◽  
Chen Zhang ◽  
Yan Bin Yang
Keyword(s):  
Removal Rate ◽  
Sewage Treatment ◽  
Experimental Studies ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Uv Disinfection ◽  
Secondary Effluent ◽  
Urban Sewage ◽  
High Doses ◽  
Uv Dose

By treating the secondary effluent of Sanbaotun sewage treatment plant in Fushun with the CS type UV Sterilizer, the experiment researches the influence on the removal rate which includes the factors of turbidity, chromaticity, initial E.coli concentration of raw water, UV dose. The results show that the turbidity does not influence on UV disinfection efficiency with the turbidity from 1.5NTU to 3.8NTU. In the low-dose UV disinfection process, the influent sewage turbidity should under 4NTU to ensure the disinfection efficiency. Low chromaticity does not affect the UV disinfection efficiency, with the influent sewage chromaticity is under 15 degrees.The initial E. coli has a certain impact on little doses of UV disinfection with the concentration from 175 × 104 A/ L to 230 × 104 A/ L, no impact on high doses of UV disinfection。

Operational Experiences with the Industrial and Communal Waste Water Treatment System in the District of Linz

1990 ◽  
Vol 22 (5) ◽  
pp. 87-92 ◽  
Author(s):  
Gerd E. Reichel
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Hydroelectric Plant ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Treatment System ◽  
Digested Sludge ◽  
Water Treatment System

The waste water treatment system of the central region Linz is described. Because of the construction of the hydroelectric plant in Abwinden-Asten a central sewage treatment plant for 22 communities and the waste waters of the chemical and steel industry was constructed. Purification efficiency in terms of BOD5 is 93 % and 83 % for COD. The anaerobic digested sludge is deposited in lagoons.

scholarly journals Sorption of Co2+, Zn2+, Cd2+ and Cs+ ions by activated sludge of sewage treatment plant

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Jana Marešová ◽  
Miroslav Horník ◽  
Martin Pipíška ◽  
Jozef Augustín
Keyword(s):  
Waste Water ◽  
Sewage Sludge ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Land Application ◽  
Zinc Cadmium ◽  
Cs Ions

Sludges are byproducts of sewage treatment process. Land application of sewage sludge is one of the final steps of waste water treatment, but solubilization of toxic metals restricts this method of sludge disposal. In our paper cobalt, zinc, cadmium and cesium sorption by suspension of non-treated activated sewage sludge (14 g/dm3, dry wt.) from waste water spiked with 60CoCl2, 65ZnCl2, 109CdCl2 or 137CsCl were determined in laboratory experiments at 20°C. Activated sludge supplied by the municipal sewage treatment plant in Zeleneč (Trnava region, Slovakia) showed high efficiency to sorb Co2+, Zn2+, Cd2+ and Cs+ ions from waste water pH 6-7. The process can be characterized by the concentration equilibrium (Csolid/Cliquid) typical for sorption processes. Efficiency of the sorption increased in the order Cs < Co < Zn < Cd. Metal sorption process was not inhibited by pretreatment of the sludge with 0.2% formaldehyde or thermal inactivation at 60°C, what confirms that the process was not dependent on metabolic activity of the sludge. Cobalt, zinc, cadmium and cesium were easily removable from the sludge by washing with diluted HCl, EDTA or water solutions of the corresponding metal ions, but with low efficiency by deionized water.

scholarly journals An emergent accession for the optimal systematize of waste water utilization plants using artificial intelligence

2021 ◽  
Author(s):  
Mohd Abul Hasan
Keyword(s):  
Waste Water ◽  
Artificial Intelligence ◽  
Water Treatment ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant

Abstract The treatment of wastewater is an essential factor in preventing pollutants and promoting the quality of the water. The inherent complexity, influential impact and the solid waste infrastructure lead to confusion and variance in the primary clarifier for wastewater. These inconsistencies lead to variations in the purity and capacity constraints of wastewater and the existential impact of water receipt. The water treatment is a complicated task that has means of chemical, technical & biochemical influences. A credible ANN method is necessary for another waste water treatment plant to prevent the breakdown of the processes. Virtual reality seems to have become a strong solution for preventing waste management uncertainties and problems. This is not only due to high deformations but also to significant external disturbances that water systems are controlling challenges. Climate is among the most significant of such disturbances. Various environmental conditions actually include different influx frequencies and levels of substances. Water contamination has become one of the extremely serious growing conservation; sewage treatment plant identification is a key major issue here and the agencies enforce tighter requirements for the operating of wastewater software systems. This article plans to create models of achievement and prospects for the possible future guidance of recent research borders for the use of artificial intelligence in wastewater treatment plants which concurrently deal with pollutants. This study has shown us that the composite ANN provides a greater level of competence in plant prediction and systemization. Highlight Systematize of Wastewater Utilization Plants, Artificial Neural Networks, artificial intelligence, Prediction Analysis, Reliability.

Start-Up of the Anaerobic Fluidized Bed

2014 ◽  
Vol 522-524 ◽  
pp. 695-698
Author(s):  
Xiao Ming Sun ◽  
Jing Yang Liu ◽  
Qi Qiao
Keyword(s):  
Removal Rate ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Organic Load ◽  
Municipal Sewage ◽  
Organic Loading Rate ◽  
Start Up ◽  
Cod Removal Rate ◽  
Anaerobic Digester Sludge

Inoculated with anaerobic digester sludge of municipal sewage treatment plant, using the method of organic load increasing, anaerobic fluidized beds was started-up after 82 days. At organic loading rate of 5kgCOD/m3·d, the COD removal rate was 81%. The structure of this biofilm is good and propitious to further domestication.

scholarly journals Eco-management of Wastewater by ZESTP

2018 ◽  
Vol 4 (2) ◽  
pp. 51-57
Author(s):  
Uday Bhan Prajapati ◽  
Arun Lal Srivastav ◽  
Shiraz A.Wajih
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Pistia Stratiotes ◽  
Total Hardness ◽  
Sewage Water Treatment

In present study, an evaluation of ZESTP (Zero Energy Sewage Treatment Plant) has been described as an alternative solution of sewage water treatment. This system has become widely famous because of having great absorption efficiencyof nutrients, simple construction and maintenance, relatively less costly as well as a strong process. After treatment of sewage water, the level of dissolve oxygen was increased up to 73% due to the enhanced numbers of photosynthetic organisms. Some aquatic macrophytes such as Eichhornia crassipes (Mart.) Solms, Pistia stratiotes L. and Hydrilla verticillata Casp were used in ZESTP for waste water treatment based on phytoremediation. ZESTP could reduce the around 84% turbidity, 46% electrical conductivity, 43% salinity, 74% acidity, 69% free CO2, 73% BOD, 44% COD, 70% suspended solids, 62% total hardness, 71% chloride, 59% cadmium, 51% iron, and 71% copper from the waste water. Naturally, some plants have capability are to retain and/or remove fatal chemicals which are present in sewage water. Moreover, macrophytes based ZESTP is a cost effective and an eco-friendly technique of sewage water treatment.

scholarly journals Occurrence of Giardia in the effluents of a waste water treatment plant in Dhaka

2012 ◽  
Vol 39 (2) ◽  
pp. 147-156 ◽  
Author(s):  
Hamida Khanum ◽  
Sharmili Shanjida Khanam ◽  
Masuma Sultana ◽  
Md. Hafiz Uddin ◽  
Ripon Chandra Dhar ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Waste Water Treatment Plant ◽  
Quantitative Detection

The present study was designed for the qualitative and quantitative detection of Giardia in the Pagla Sewage Treatment Plant (PSTP) in Dhaka. The physico-chemical parameters of the sewage water were also recorded. Total 72 raw and treated samples were collected from PSTP throughout the year 2008 and these were processed with the Formol-Ether Concentration method and IMS followed by microscopy to identify Giardia in the sewage water. The protozoan parasite Giardia was abundant (2.23±1.44 × 105 cyst/l) in the sewage water dominating the sampling sites-Grit chamber (44%), Measuring chamber (34%) and Outlet lagoon (38%). A low abundance of Giardia in the PSTP starting from the first point to the last one indicates the waste water treatment efficiency for removal of the pathogen. A significant correlation was found for log (number of Giardia +1) with turbidity (r= 0.729) and TDS (r= 0.536) at 0.01level.DOI: http://dx.doi.org/10.3329/bjz.v39i2.10578 Bangladesh J. Zool. 39(2): 147-156, 2011

scholarly journals Study on the Operation Effect of Constructed Wetland Project for Tailwater Treatment—An Example from a Sewage Plant in Zhejiang Province

2020 ◽  
Vol 194 ◽  
pp. 04030
Author(s):  
Mengyin Chen ◽  
Weifeng Zeng ◽  
Guan Wang ◽  
Fangchun Lu ◽  
Jinjuan Zhang ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Design Parameters ◽  
Class Iii ◽  
Urban Sewage ◽  
Sewage Plant

The constructed wetland project of tailwater from an urban sewage plant in central Zhejiang was selected to collect water samples in different seasons, and the samples were tested for chemical oxygen demand (COD), total phosphorus (TP), total nitrogen (TN) and other indicators. The results showed that the operation effect of the constructed wetland project is good when the effluent from the sewage treatment plant meets the Class A discharge standard. Among them, the removal effect of TP was the best, with an average removal rate of 61.52%, reaching the standards of surface water class III and class IV in some tests. Besides, the removal effect of TP was stable and varies little with seasons. The removal rates of COD and TN were relatively low and varied greatly with seasons, which were higher in spring and summer than in autumn and winter, with a negative removal rate of TN in winter. This research provides practical data for optimizing the engineering design parameters and improving the operation management to promote the operation efficiency of the constructed wetland.

scholarly journals Uptake and bio-transformation of telmisartan by cress (Lepidium sativum) from sewage treatment plant effluents using high-performance liquid chromatography/drift-tube ion-mobility quadrupole time-of-flight mass spectrometry

2021 ◽  
Author(s):  
Tamara Lang ◽  
Markus Himmelsbach ◽  
Franz Mlynek ◽  
Wolfgang Buchberger ◽  
Christian W. Klampfl
Keyword(s):  
High Performance ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Parent Drug ◽  
Water Treatment Plant ◽  
Lepidium Sativum ◽  
Waste Water Treatment Plant ◽  
Flight Mass Spectrometry

AbstractIn the present study, the uptake and metabolization of the sartan drug telmisartan by a series of plants was investigated. Thereby for seven potential metabolites, modifications on the telmisartan molecule such as hydroxylation and/or glycosylation could be tentatively identified. For two additional signals detected at accurate masses m/z 777.3107 and m/z 793.3096, no suggestions for molecular formulas could be made. Further investigations employing garden cress (Lepidium sativum) as a model plant were conducted. This was done in order to develop an analytical method allowing the detection of these substances also under environmentally relevant conditions. For this reason, the knowledge achieved from treatment of the plants with rather high concentrations of the parent drug (10 mg L−1) was compared with results obtained when using solutions containing telmisartan in the μg - ng L−1 range. Thereby the parent drug and up to three tentative drug-related metabolites could still be detected. Finally cress was cultivated in water taken from a local waste water treatment plant effluent containing 90 ng L−1 of telmisartan and harvested and the cress roots were extracted. In this extract, next to the parent drug one major metabolite, namely telmisartan-glucose could be identified.

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