Experimental Study on the Landscape Combined Sewage Treatment Technology

2013 ◽  
Vol 864-867 ◽  
pp. 2654-2658
Author(s):  
Li Song ◽  
Gui Fang Jiang ◽  
Zhi Gang Xie ◽  
Qing Li ◽  
Wu Quan Ding
Keyword(s):  
Low Cost ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Surface Water Quality ◽  
Quality Standard ◽  
Stable Operation ◽  
Treatment Technology ◽  
Wastewater Treatment Process ◽  
Urban Sewage

In this paper, artificial wetland systems, aeration tanks, rapid filter combined biological wastewater treatment process facilities for domestic sewage treatment. Test systems,TN treatment effect, are higher than the value of surface water quality standard GB3838-2002 in V class standards.Treatment effect to achieve the urban sewage treatment plant pollutant discharge standards GB18918-2002 a class of emission standards, the treatment system, low cost, easy management, stable operation.

Estrogenic compounds in Tunisian urban sewage treatment plant: occurrence, removal and ecotoxicological impact of sewage discharge and sludge disposal

Ecotoxicology ◽  
2016 ◽  
Vol 25 (10) ◽  
pp. 1849-1857 ◽  
Author(s):  
Dalel Belhaj ◽  
Khaled Athmouni ◽  
Bouthaina Jerbi ◽  
Monem Kallel ◽  
Habib Ayadi ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Estrogenic Compounds ◽  
Sewage Discharge ◽  
Urban Sewage ◽  
Sludge Disposal

Simultaneous immobilization of ammonium and phosphate from aqueous solution using zeolites synthesized from fly ashes

2013 ◽  
Vol 67 (6) ◽  
pp. 1324-1331 ◽  
Author(s):  
X. D. Ji ◽  
M. L. Zhang ◽  
Y. Y. Ke ◽  
Y. C. Song
Keyword(s):  
Sewage Treatment ◽  
Water Environment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Quality Standard ◽  
Exchange Capacity ◽  
Fly Ashes ◽  
Adsorption Processes ◽  
Equilibrium Data ◽  
Intra Particle Diffusion

Zeolites were synthesized from silica-rich (SF-Z) and calcium-rich (CF-Z) fly ashes, respectively, and their performance in immobilizing ammonium and phosphate was investigated through batch experiments. The cation exchange capacity and phosphate immobilization capacity of SF-Z were identified as 2.79 meq/g and 12.97 mg/g while those of CF-Z were 0.69 meq/g and 87.41 mg/g, respectively. The mixture of SF-Z and CF-Z (MSC-Z) immobilized simultaneously ammonium and phosphate, and the ratio of SF-Z to CF-Z depended on the ammonium and phosphate concentrations in wastewater and the discharge standard. The adsorption processes of ammonium and phosphate on MSC-Z followed Ho's pseudo-second-order model and the intra-particle diffusion was a rate-controlling step. The Langmuir model produced better suitability to the equilibrium data. The thermodynamic study revealed that the adsorption of both ammonium and phosphate on MSC-Z was an endothermic reaction. After treatment by MSC-Z, the ammonium and phosphate concentrations in wastewater from a sewage treatment plant decreased from 7.45 and 1.42 mg/L to 2.06 and 0.51 mg/L, respectively, and met Surface Water Environment Quality Standard in China δ. These results show that the immobilization of ammonium and phosphate in wastewater can be achieved by the combination of zeolites synthesized from silica-rich and calcium-rich fly ashes.

Minimising Nuisances by Covering Compact Sewage Treatment Plants

1992 ◽  
Vol 25 (4-5) ◽  
pp. 363-374 ◽  
Author(s):  
F. Rogalla ◽  
G. Roudon ◽  
J. Sibony ◽  
F. Blondeau
Keyword(s):  
Large Scale ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Mediterranean Coast ◽  
High Rate ◽  
Parallel Plates ◽  
Multiple Use ◽  
Treatment Technology ◽  
Sewage Treatment Plants

Stringent effluent quality programs to limit wastewater discharges into receiving waters require extensive upgrading of conventional wastewater treatment plants. Large facilities built some decades ago are now often located in densely urbanised areas where land is unavailable. Since nitrogen and phophorus removal often require additional unit processes, innovative solutions have to be found to upgrade existing plants for nutrient removal. This paper shows large scale examples of compact technology and the additional upgrading flexibility provided. New facilities are implemented in sensitive neighborhoods by creative siting under sports stadiums, parks or buildings. In covered plants, air emission control becomes of primary importance. To reduce visual impacts and facilitate odour control, more and more underground treatment plants are constructed, allowing multiple use of plant surfaces. Several plants are illustrated in inner-city locations, avoiding infrastructure cost to pump sewage to remote sites. Most of the presented plants incorporate spacesaving settling facilities and high rate biological reactors to reduce the ‘footprints' of the installations and thus favour coverage. Parallel plates in primary setllers reduce the surface to about one tenth of conventional systems. Biocarbone aerated filters combine biodegradation with very high removal rates and retention of particles in one reactor, without additional clarification or filtration. Air treatment for large plant is mostly performed by chemical scrubbing, completely eliminating environmental nuisances. Performance results of both air and water treatment technology are given. Examples include recent sewage treatment plants on the French Mediterranean Coast. A physico-chemical treatment plant for 1 Million p.e. has operated since 1987 under a stadium in Marseille. In Monaco, the sewage treatment plant for 100 000 p.e.is located in the city center underneath a building of 3000 m2. Primary lamella settlers are followed by biological treatment on Biocarbone aerated filters and air is chemically deodourised. Similar technology is used in Antibes' 200 000 p.e. plant, integrated underneath a park close to the beach.

scholarly journals Evaluation of Biogas Biodesulfurization Using Different Packing Materials

2019 ◽  
Vol 3 (1) ◽  
pp. 27 ◽  
Author(s):  
Samir Tayar ◽  
Renata Guerrero ◽  
Leticia Hidalgo ◽  
Denise Bevilaqua
Keyword(s):  
Material Selection ◽  
Low Cost ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Packing Material ◽  
Sulfide Concentration ◽  
Packing Materials ◽  
Selection For ◽  
High Sulfide

The packing material selection for a bioreactor is an important factor to consider, since the characteristics of this material can directly affect the performance of the bioprocess, as well as the investment costs. Different types of low cost packing materials were studied in columns to reduce the initial and operational costs of biogas biodesulfurization. The most prominent (PVC pieces from construction pipes) was applied in a bench-scale biotrickling filter to remove the H2S of the biogas from a real sewage treatment plant in Brazil, responsible for 90 thousand inhabitants. At the optimal experimental condition, the reactor presented a Removal Efficiency (RE) of up to 95.72% and Elimination Capacity (EC) of 98 gS·m−3·h−1, similar to open pore polyurethane foam, the traditional material widely used for H2S removal. These results demonstrated the high potential of application of this packing material in a full scale considering the robustness of the system filled with this support, even when submitted to high sulfide concentration, fluctuations in H2S content in biogas, and temperature variations.

A Study on Acclimation and Culture of Salt Tolerant Sludge

2014 ◽  
Vol 955-959 ◽  
pp. 1895-1898
Author(s):  
Su Chen ◽  
Lei Chao ◽  
Ning Chen ◽  
Lin Shan Wang ◽  
Xue Shao ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Treatment Plant ◽  
Experimental System ◽  
Biological Indicator ◽  
Stable Operation ◽  
Aeration Tank ◽  
Salt Tolerant ◽  
Removal Rates ◽  
Salinity Acclimation ◽  
Urban Sewage

The inoculated sludge in this experimental system is from the end of aeration tank of the wastewater treatment plant. Under stable operation, the system’s treatments of COD and NH4+-N are all in line with Level One Urban Sewage Discharge stipulated by Pollutant Discharge Standards for Urban Sewage Treatment Plants (GB 18918-2002). The removal rates of COD and NH4+-N are 94.27% and 91.03%. By gradually improving the method of salinity acclimation, the salt tolerant sludge with outstanding performance can be successfully acclimated, and each gradual increase in salinity scope is controlled at around 4 g/L. When the salinity is 1%, the removal rates of COD and NH4+-N reach to 92.09% and 70.13%. The salinity has significant impacts on microbial activity. With the increase in salinity, the dehydrogenase activity gradually decreases. Salinity has significant effects on protozoa. Paramecia and nematodes can be taken as the biological indicator of outflow water quality of brine waste.

The Automatic Control System Based on PROFIBUS for the City Sewage Treatment

2013 ◽  
Vol 385-386 ◽  
pp. 857-861
Author(s):  
Xiao Ping Huang ◽  
Qi Xing Qing
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Fuzzy Controller ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Difficult Problem ◽  
Urban Sewage ◽  
Treated Sewage

On the basis of the computerized technological process control of sewage treatment in a urban sewage treatment plant in the Zone of Nanning, the author had brought forward a plan of PROFIBUS that based on automatic control system for sewage treatment, and designed the automatic control system diagram and the PROFIBUS network diagram for sewage treatment plant. At the same time, the author also made a study of techniques to control the sewage aeration, which was the most difficult problem in sewage treatment process. The fuzzy controller could indicate the changes of the water quality in treated sewage, effectively controlled the volume of aeration and then cut down the operation costs,it had produced good economic and social benefits.

scholarly journals Cod Fractions - Methods of Measurement and Use in Wastewater Treatment Technology

2017 ◽  
Vol 24 (1) ◽  
pp. 195-206 ◽  
Author(s):  
Sylwia Myszograj ◽  
Ewelina Płuciennik-Koropczuk ◽  
Anita Jakubaszek
Keyword(s):  
Soluble Fraction ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Treatment Technology ◽  
Sewage Treatment Plants ◽  
Real Concentration ◽  
Industrial Sewage ◽  
Methods Of Measurement ◽  
Raw Wastewater

Abstract The paper presents the results of studies concerning the designation of COD fraction in raw wastewater. The research was conducted in four municipal mechanical-biological sewage treatment plants and one industrial sewage treatment plant. The following fractions of COD were determined: non-biodegradable (inert) soluble SI, biodegradable soluble fraction SS, particulate slowly degradable XS and particulate non-biodegradable XI. The methodology for determining the COD fraction was based on the ATV-A131 guidelines and Łomotowski-Szpindor methodology. The real concentration of fractions in raw wastewater and the percentage of each fraction in total COD are different from data reported in the literature.

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。

scholarly journals Study of Industrial Black Water Treatment Plant Installation Planning System Based on Sewage Treatment Plant

2020 ◽  
Vol 2 (3) ◽  
pp. 128-138
Author(s):  
Jantiara Eka Nandiasa ◽  
Ridi Nurardiansyah
Keyword(s):  
Wastewater Treatment ◽  
Research Method ◽  
Human Life ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Secondary Data ◽  
Quality Standard ◽  
Planning System ◽  
Public Places

Wastewater in general is water, in general, is a liquid that comes from households, industries, or other public places that usually contain materials or substances that can endanger human life and disturb the environment. Quid comes from households, industries, or other public places that usually contain materials or substances that can endanger human life and disturb the environment. This study to plan, analyze, and assess the performance conditions of wastewater treatment plants (IPAL) at PT XYZ Bekasi Regency on environmental quality standards. Data and information used are data on the amount of wastewater, sources of wastewater, and behavior of water use as well as secondary data in the form of data that the authors surveyed directly at the research location. The processing method of the output value of WWTP uses the research method of the laboratories from the research method in which the output value exceeds the quality standard of LHK Regulation No. 68 the Year 2016 and has exceeded its planning capacity. And what is identified is not safe. An alternative solution to the problem of unsafe output values ​​is by planning a new wastewater treatment plant.

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