Research of Civil Air Defense Projects Biogas Purification Independent Drainage System

2012 ◽  
Vol 518-523 ◽  
pp. 3731-3734 ◽  
Author(s):  
Liang Chen ◽  
Chao Zhang ◽  
Shi Li Zhan
Keyword(s):  
Sewage Treatment ◽  
Drainage System ◽  
Economic Benefits ◽  
Internal Drainage ◽  
Poor Survival ◽  
Underground Engineering ◽  
Treatment Technology ◽  
Air Defense ◽  
Biogas Purification ◽  
Self Protection

The traditional drainage system of civil air defense projects is designed to discharge waste water directly to engineering external, depending on the external facilities of the project seriously, result in poor survival of the entire civil air defense in wartime. Through the engineering biogas tanks sewage treatment technology in underground engineering, independence of internal drainage system is greatly enhanced, the whole project’ self-protection and ability to substantially is greatly strengthened in wartime, then it will not only have good environmental and economic benefits, but also have a strong military benefits.

Research and Application of Intelligent Zero Discharge Treatment Technology for Substation Wastewater

2013 ◽  
Vol 448-453 ◽  
pp. 453-458
Author(s):  
Ai Jun Yan ◽  
Lei Liu ◽  
Ying Cao ◽  
Wen Ning Shen ◽  
Mo Cao ◽  
...  
Keyword(s):  
Water Pollution ◽  
Treatment Process ◽  
Sewage Treatment ◽  
Economic Benefits ◽  
Treatment Technology ◽  
Environmental Disputes ◽  
Full Life Cycle ◽  
Use Of Technology ◽  
Zero Discharge ◽  
Full Life

To solve problems associated with water pollution, as well as environmental disputes caused by discharge non-compliance, an intelligent zero discharge and integrated anti-corrosion design was used. This was based on a 330kV substation sewage treatment project. This design provides intelligence and zero discharge for the substation sewage treatment process. It also optimizes the use of technology to provide the economic benefits of a full life cycle. The design will provide notable environmental and economic benefits.

scholarly journals Effect of pH and Initial Concentration on Adsorption of Chitosan in Restaurant Sewage Treatment Technology

2021 ◽  
Vol 804 (4) ◽  
pp. 042085
Author(s):  
Yibo Wang ◽  
Hua Liu ◽  
Zhijian Mai ◽  
Peiqi Jiang ◽  
Canjie Yang ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Treatment Technology ◽  
Effect Of Ph ◽  
Initial Concentration

scholarly journals The Security of Energy Supply from Internal Combustion Engines Using Coal Mine Methane—Forecasting of the Electrical Energy Generation

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3049
Author(s):  
Marek Borowski ◽  
Piotr Życzkowski ◽  
Klaudia Zwolińska ◽  
Rafał Łuczak ◽  
Zbigniew Kuczera
Keyword(s):  
Coal Mine ◽  
Predictive Models ◽  
Coalbed Methane ◽  
Internal Combustion Engines ◽  
Drainage System ◽  
Production Capacity ◽  
Methane Combustion ◽  
Economic Benefits ◽  
Electricity Production ◽  
Coal Mine Methane

Increasing emissions from mining areas and a high global warming potential of methane have caused gas management to become a vital challenge. At the same time, it provides the opportunity to obtain economic benefits. In addition, the use of combined heat and power (CHP) in the case of coalbed methane combustion enables much more efficient use of this fuel. The article analyses the possibility of electricity production using gas engines fueled with methane captured from the Budryk coal mine in Poland. The basic issue concerning the energy production from coalbed methane is the continuity of supply, which is to ensure the required amount and concentration of the gas mixture for combustion. Hence, the reliability of supply for electricity production is of key importance. The analysis included the basic characterization of both the daily and annual methane capture by the mine’s methane drainage system, as well as the development of predictive models to determine electricity production based on hourly capture and time parameters. To forecast electricity production, predictive models that are based on five parameters have been adopted. Models were prepared based on three time variables, i.e., month, day, hour, and two values from the gas drainage system-capture and concentration of the methane. For this purpose, artificial neural networks with different properties were tested. The developed models have a high value of correlation coefficient. but showed deviations concerning the very low values persisting for a short time. The study shows that electricity production forecasting is possible, but it requires data on many variables that directly affect the production capacity of the system.

Research on Sewage Treatment Technology of High Salt City in Tangshan Coastal Development Zone

2012 ◽  
Vol 599 ◽  
pp. 543-546
Author(s):  
Yang Yong ◽  
Xiao Liu ◽  
Yao Zong Zhang
Keyword(s):  
Economic Development ◽  
Sewage Treatment ◽  
Coastal Areas ◽  
Coastal Development ◽  
Biochemical Treatment ◽  
Treatment Technology ◽  
Development Zone ◽  
Technical Parameters ◽  
Urban Sewage ◽  
Technical Programs

With the economic development of the coastal development zone, the coastal industrial and economic development is rapid and the other residents' living consumption is lagging behind, resulting in a new coastal development zone COD / BOD low, coupled with the regional characteristics of the coastal areas, making the coastal areas of urban sewagetreatment plant of the difficult problems of biochemical treatment. This study focused on the reasons for the difficulties of urban sewage in coastal areas of biochemical treatment solution to the problem, and provide relevant technical programs and technical parameters for the construction of a new coastal development zone in the city sewage treatment.

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 Microplastics pollution in China water ecosystems: a review of the abundance, characteristics, fate, risk and removal

2020 ◽  
Vol 82 (8) ◽  
pp. 1495-1508
Author(s):  
Shuyuan Tang ◽  
Ling Gao ◽  
Hongze Gao ◽  
Zongshi Chen ◽  
Donglei Zou
Keyword(s):  
Economic Development ◽  
Large Population ◽  
Sewage Treatment ◽  
Current Treatment ◽  
Research Trends ◽  
Future Research ◽  
Treatment Technology ◽  
Sewage Treatment Plants ◽  
Research Results ◽  
Water Ecosystems

Abstract Microplastics pollution has been a focus for researchers in recent years worldwide, for the large quantities of plastics in production and the resistance to degradation. China's microplastics pollution attracts much attention because of its long coastline, large population and rapid economic development. This review addresses the widespread microplastics pollution in China's water ecosystems through available research results from recent years and analyses the abundance, characteristics, fate and risk of microplastics. This paper also discusses the current treatment technology of microplastics. The conclusions show that estuaries are severely affected by microplastics pollution; the accumulation of microplastics and adsorption of contaminants by microplastics could also lead to serious risks besides ingestion; there are few technologies that can efficiently remove microplastics pollution in sewage treatment plants. Finally, this review suggests directions for future research trends.

scholarly journals Pengaruh Aerasi Dalam Constructed Wetland Pada Pengolahan Air Limbah Domestik

2018 ◽  
Vol 16 (2) ◽  
pp. 155
Author(s):  
Euis Nurul Hidayah ◽  
Andrysah Djalalembah ◽  
Gina Aprilliana Asmar ◽  
Okik Hendriyanto Cahyonugroho
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetland ◽  
Drainage System ◽  
Domestic Wastewater ◽  
Septic Tank ◽  
Source Water ◽  
Treatment Technology ◽  
Detention Time ◽  
Domestic Wastewater Treatment ◽  
Natural Treatment

ABSTRAKPenanganan air limbah domestik Kota Surabaya selama ini dilakukan dengan 2 cara, yakni untuk blackwater dialirkan ke tangki septik dan greywater dialirkan ke drainase tanpa pengolahan. Hal ini menyebabkan peningkatan pencemar pada sungai sebagai air baku. Salah satu teknologi alternatif yang dapat diaplikasikan dengan mudah dan rendah biaya operasional dibanding pengolahan air limbah lainnya adalah constructed wetland dengan menggunakan tanaman Iris pseudoacorus sebagai kombinasi pengolahan biofilter dan proses fitoteknologi. Penelitian ini dilakukan untuk mengetahui efisiensi dari constructed wetland dengan tanaman Iris pseudoacorus untuk mengolah limbah domestik, serta menentukan bagaimana pengaruh dari adanya aerasi dan pengaruh waktu tinggal pada sistem constructed wetland dalam menurunkan bahan organik dan nitrogen pada air limbah. Penelitian ini dilakukan dalam skala uji laboratorium menggunakan reaktor berkapasitas 30 liter. Air limbah dialirkan pada reaktor dengan waktu tinggal 2 hari dan 3 hari, dengan variasi aerasi dan efisiensi pencemar diukur dengan parameter BOD, dan ammonia. Hasil penelitian ini menunjukan bahwa kemampuan penyisihan BOD, dan ammonia dari limbah air domestik oleh reaktor constructed wetland dengan tambahan aerasi dan waktu tinggal selama 4 hari sangat efektif. Reaktor ini mampu menurunkan nilai BOD hingga 96% dan nilai ammonia sebesar 97%.ABSTRACTWastewater domestic in Surabaya City has been treated in two methods, including septic tank for blackwater and directly discharged into drainage system for greywater. This caused an increasing pollutant loading in source water. Constructed wetland with Iris pseudoacorus, one of the alternative natural treatment technology through biofilter and phytotechnology process, could be applied easily and less costly to other treatment. This research was conducted to know the efficiency of constructed wetland with Iris pseudoacorus in domestic wastewater treatment, and to reveal the effect of aeration and detention time in reducing organic and nitrogen content in domestic wastewater. Experiment has been conducted on a laboratory scale of continue aerated reactor and without aeration as control reactor. Detention time (days) 2 and 3 was setup, then sample was taken for BOD and ammonia measurement. The results indicated that constructed wetland with aeration and detention time 4 days had a higher performance to remove BOD up to 96% and ammonia up to 97% than without aeration and less than 4 days process.Keywords: Domestic Wastewater, Constructed Wetland, Phytotechnology, Iris pseudoacorus, Aeration.Sitasi: Hidayah, E. N., Djalalembah, A., Asmar, G.A. dan Cahyonugroho, G.A. (2018). Pengaruh aerasi dalam constructed wetland pada pengolahan air limbah domestik. Jurnal Ilmu Lingkungan, 16(2),155-161, doi:10.14710/jil.16.2.155-161

scholarly journals Optimization of reinjection treatment technology for oilfield wastewater in Longdong area

2020 ◽  
Vol 194 ◽  
pp. 04046
Author(s):  
Xiulan Zhu ◽  
Yanlong Ran ◽  
Wenjie Guo ◽  
Ke Gai ◽  
Yanju Li ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Solid Phase ◽  
Sewage Treatment ◽  
Water Injection ◽  
Oil Production ◽  
High Water ◽  
Oil Field ◽  
Treatment Technology ◽  
Water Separation ◽  
High Water Cut

With the long-term water injection development of Longdong oilfields, most of the oilfield blocks have been fully in the mid-high water cut period, and the amount of oil production wastewater is increasing year by year. In order to prevent the waste of resources and energy of oil production sewage, the oil production sewage after reaching the standard is treated for reinjection, which will ensure the sustainable development of the oil field. Oil production wastewater contains crude oil, solid-phase suspended solids and other pollutants, with high salinity, and problems such as difficulty in oil-water separation, sludge, scaling and corrosion. The sewage treatment system uses a multifunctional water treatment device to effectively remove oil and filter through the “special microorganism + air flotation + filtration” process, and build a sludge sewage tank for sludge discharge and backwashing. The reformed oil recovery wastewater reinjection treatment technology turns “sewage” into “clear flow”, reduces operating costs, improves wastewater treatment efficiency, and meets the water quality requirements of oilfield reinjection water.

Overview of legislation on sewage sludge management in developed countries worldwide

2015 ◽  
Vol 73 (3) ◽  
pp. 453-462 ◽  
Author(s):  
A. Christodoulou ◽  
K. Stamatelatou
Keyword(s):  
Sewage Sludge ◽  
Common Ground ◽  
Sewage Treatment ◽  
Climate Change Impacts ◽  
Renewable Resource ◽  
Developed Countries ◽  
Economic Benefits ◽  
The European Union ◽  
Sludge Management ◽  
Sewage Sludge Management

The need to apply innovative technologies for maximizing the efficiency and minimizing the carbon footprint of sewage treatment plants has upgraded sewage sludge management to a highly sophisticated research and development sector. Sewage sludge cannot be regarded solely as ‘waste’; it is a renewable resource for energy and material recovery. From this perspective, legislation on sewage sludge management tends to incorporate issues related to environmental protection, public health, climate change impacts and socio-economic benefits. This paper reviews the existing legislative frameworks and policies on sewage sludge management in various countries, highlighting the common ground as well as the different priorities in all cases studied. More specifically, the key features of legislation regarding sludge management in developed countries such as the USA, Japan, Australia, New Zealand and the European Union (EU27) are discussed.

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