Research of Treatment Technology for Electroplating Wastewater

2014 ◽  
Vol 487 ◽  
pp. 713-716 ◽  
Author(s):  
Yi Dan Zhou ◽  
Miao Sun ◽  
Li Juan Wang ◽  
Guan Nan Xi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Electrochemical Method ◽  
Chemical Process ◽  
Biological Treatment ◽  
Chemical Method ◽  
Treatment Technology ◽  
Electroplating Wastewater ◽  
The Common ◽  
Physical And Chemical

The sources and composition of electroplating waste water are summarized. The common wastewater treatment technology, such as physical and chemical method, physic-chemical process, biological treatment and electrochemical method, and so on. Then the vision for the development of electroplating wastewater treatment technology is made.

Development of the Acidic Mining Wastewater Treatment Technology

2013 ◽  
Vol 295-298 ◽  
pp. 1372-1375 ◽  
Author(s):  
Guang Wei Liu ◽  
Run Cai Bai
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Mining Waste ◽  
Formation Condition ◽  
Research Development ◽  
Treatment Technology ◽  
Acid Mine ◽  
Mining Wastewater

The main formation condition and harmfulness of the acidic mining waste water's were analyzed in this paper. The treatment technology of the acid mine drainage's was briefly introduced. The research development of acid mine drainage was summarized in recent years. It was the fact that developing the efficient, cheap, safe and easy treatment technology of acid mine should be necessary and inevitably and some success management experiences of acidic waste water were applied in acidic mining wastewater.

Evaluation of the Effectiveness of the Use of Enzyme Complexes in the Process of Biological Treatment of Wastewater from Pulp and Paper Enterprises

2018 ◽  
Vol 22 (6) ◽  
pp. 15-19
Author(s):  
E.H. Sakaeva ◽  
L.V. Rudakova
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Beneficial Effect ◽  
Activated Sludge ◽  
Biological Treatment ◽  
Experimental Studies ◽  
Pulp And Paper ◽  
Technological Scheme ◽  
Biological Wastewater Treatment ◽  
Enzyme Complexes

The results of experimental studies on the evaluation of the possibility of using enzyme complexes in the biological treatment of waste water from pulp and paper enterprises are presented. The use of enzyme complexes will increase the efficiency of wastewater treatment by COD and BOD, and will also have a beneficial effect on the hydrochemical and hydrobiological characteristics of activated sludge. Experimental studies have determined the points of introduction of enzyme complexes into the technological scheme of biological wastewater treatment.

scholarly journals Sewage sludge utilization for the municipality of Gdansk

2019 ◽  
pp. 169-177
Author(s):  
Ewa Sienkiewics ◽  
Piotr Kowalik ◽  
Stanislav Drzewinski ◽  
Klemens Herman
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Land Reclamation ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Waste Dump ◽  
Treatment Technology ◽  
Phosphorus Extraction ◽  
Near Future

In the municipal wastewater treatment plant in Gdansk a biological treatment technology allowing removing of nutrients was launched recently. This will result in increasing of the volume of sludge from 27.3 t d.m./d now to about 45 t d.m./d in the near future. The analysis of various possibilities of sludge utilization was made. It was concluded that incineration of the sludge seems to be the most promising method, while the possibilities of application of sludge in agriculture, forestry or to land reclamation are limited. Therefore it is suggested that 90% of sludge should be incinerated and the remaining 10% - stabilized with lime and applicated to land reclamation. The ahses generated during the incineration of sludge should be deposited at the municipal waste dump, with possible phosphorus extraction in the future.

Treatment of waste water from complex organic substances

2020 ◽  
Vol 24 (7) ◽  
pp. 4-7
Author(s):  
B.S. Kenofontov ◽  
A.S. Kozodayev ◽  
R.A. Taranov ◽  
M.S. Vinogradov
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Chemical Technology ◽  
Hazardous Substances ◽  
Organic Substances ◽  
Polycyclic Hydrocarbons ◽  
Physical And Chemical ◽  
Complex Organic

The work deals with solving the problem of extraction of polycyclic hydrocarbons from waste water by using physical and chemical technology, including the use of flotation, settling, filtration, adsorption, ozonation. The use of such a technique makes it possible to significantly reduce the concentration of hazardous substances such as benzapirene in the waste water to be purified. Under certain modes of wastewater treatment using physical and chemical technology, the concentration of benzapirene does not exceed the regulatory values. Prospects for the use of biophlotocombines for the treatment of waste water containing complex organic substances are indicated.

scholarly journals Domestic Wastewater Piping Network Planning and Technology Recommendations for Wastewater Treatment Case Study: The Ambarita Area, Samosir Regency, North Sumatra

2021 ◽  
Vol 1 (3) ◽  
pp. 189-208
Author(s):  
Diki Surya Irawan ◽  
Deffi Ayu Puspito Sari ◽  
Anggita Ariesta
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Network Planning ◽  
Domestic Wastewater ◽  
Quality Standard ◽  
Free Chlorine ◽  
Literature Study ◽  
Treatment Technology

Lake Toba is one of ten programs the Ministry of Tourism in the Republic Indonesia, as a priority tourism area because of its unique potential. The Ambarita is one of 16 villages that are priority areas in Simanindo Subdistrict, Samosir Regency. At present, the quality of Lake Toba's waters has been polluted, the pollution is caused by domestic waste water which is discharged directly without prior treatment. The purpose of this study is to plan a domestic wastewater pipeline network and recommendations for wastewater treatment plants with a centralized system in the Ambarita. This study uses a data analysis method by using a population projection approach with maximum capacity to be planned in the draft MasterPlan of Ambarita and literature study for WWTP technology recommendations. The results showed that the total discharge of wastewater in the Ambarita was 0,06495 m3/second and the results of laboratory tests showed the parameters that exceeded quality standard were free chlorine and fecal coli. Piping network planning in the Ambarita uses concrete type pipes with diameters of 100 mm, 125 mm, 150 mm, 200 mm and 250 mm. The selected Waste Water Treatment Technology recommended is anaerobic-aerobic biofilter technology with removal efficiency for fecal coli and free chlorine are 99.9% and  65%.

Перспективная технология очистки коммунальных сточных вод гранулированными илами

2019 ◽  
pp. 34-44
Author(s):  
M. Kevbrina ◽  
A. Akmentina ◽  
A. Dorofeev ◽  
A. Agarev ◽  
V. Aseeva ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Batch Reactor ◽  
Granular Sludge ◽  
Aeration Tank ◽  
Municipal Wastewater Treatment ◽  
Treatment Technology ◽  
Maximum Permissible Concentrations

Увеличение удельной биохимической мощности сооружений с применением так называемых гранулированных активных илов является одним из перспективных направлений развития технологий биологической очистки сточных вод. Гранулированные илы это микробные биоценозы, специализирующиеся на разложении и минерализации веществ, содержащихся в сточных водах. Отличие от обычных илов обусловлено двумя важными факторами: строением основной структурной единицы гранулированного ила гранулы, и высокой скоростью осаждения (до 20 м/ч). Это позволяет создавать в биореакторах очистки сточных вод дозы ила до 10 г/л. Представлены результаты разработки первой в РФ биотехнологии очистки городских сточных вод с применением гранулированного активного ила. Технология реализована на объектах АО Мосводоканал . Технология аэробной биологической очистки в реакторе последовательнопериодического действия с последовательной нитриденитрификацией и восходящим потоком сточной воды позволяет обеспечить качество очищенной воды, соответствующее нормативам предельно допустимых концентраций для сброса в водоемы рыбохозяйственного назначения. Техникоэкономическое сравнение разработанной технологии с технологией удаления биогенных элементов в аэротенке проточного типа показало, что затраты жизненного цикла сооружений с частично гранулированным активным илом в 1,4 раза меньше затрат традиционной технологии биологической очистки (для производительности 1000 м3/сут).Increasing the specific biochemical capacity of the facilities using the socalled granular activated sludge is one of the promising areas for the development of biological wastewater treatment technologies. Granular sludge is microbial biocenosis specializing in the decomposition and mineralization of substances present in wastewater. The main distinction from regular sludge is due to two important factors: the composition of the basic structural unit of granular sludge granules, and a high sedimentation rate (up to 20 m/h). This provides for developing sludge doses of up to 10 g/l in bioreactors of wastewater treatment. The results of the development of the first biotechnology in Russia for municipal wastewater treatment of using granular activated sludge are presented. The technology has been implemented at the facilities of Mosvodokanal JSC. The technology of aerobic biological treatment in a sequencing batch reactor with sequential nitridenitrification and an upward flow of wastewater provides for the quality of effluent that meets the standards for maximum permissible concentrations for discharge into fishery bodies. Technical and economic comparison of the developed technology with the technology of removing nutrients in flowthrough aeration tank showed that the life cycle costs of the facilities with partially granulated activated sludge are 1.4 times less than the costs of traditional biological treatment technology (for a capacity of 1000 m3/day).

Research on the Experimental Device of Combined Two-Phase ABR and SBR

2014 ◽  
Vol 507 ◽  
pp. 677-681
Author(s):  
Ling Jing ◽  
Xin Xia Wang
Keyword(s):  
Mass Transfer ◽  
Wastewater Treatment ◽  
Biological Treatment ◽  
High Efficiency ◽  
Low Cost ◽  
Rapid Development ◽  
Water Environment ◽  
Biofilm Reactor ◽  
Treatment Technology ◽  
Two Phase

With the rapid development of industrial and agricultural production in China, the industrial waste water and city wastewater discharged to water environment are increasing. Anaerobic biological treatment is a low-cost wastewater treatment technology and is also a combined technology of the wastewater treatment and energy recovery, it can be used as a core part of energy production and environmental protection system, its product can be actively used to result economic value. After in-depth and systematically study the mechanism and mass transfer theory of anaerobic biological treatment technology, this paper designs anaerobic reactor of high efficiency in mass transfer, namely the anaerobic baffled - elastic packing biofilm reactor.

scholarly journals Isolation and Characterization of Bacteriophages Infecting Nocardioforms in Wastewater Treatment Plant

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Krishna Khairnar ◽  
Preeti Pal ◽  
Rajshree H. Chandekar ◽  
Waman N. Paunikar
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Biocontrol Agent ◽  
Treatment Plant ◽  
Treatment Method ◽  
Foam Formation ◽  
Stable Foam ◽  
Isolation And Characterization ◽  
Physical And Chemical

Activated sludge plants (ASP) are associated with the stable foaming problem worldwide. Apart from the physical and chemical treatment methods, biological treatment method has been least explored and may prove to be a novel and ecofriendly approach to tackle the problem of stable foam formation. In ASP Nocardia species are commonly found and are one of the major causes for forming sticky and stable foam. This study describes the isolation and characterization of three Nocardia bacteriophages NOC1, NOC2, and NOC3 for the control of Nocardia species. The bacteriophages isolated in this study have shown promising results in controlling foam producing bacterial growth under laboratory conditions, suggesting that it may prove useful in the field as an alternative biocontrol agent to reduce the foaming problem. To the best of our knowledge to date no work has been published from India related to biological approach for the control of foaming.

The Research of Wastewater Treatment by Membrane Bioreactor (MBR)

2014 ◽  
Vol 618 ◽  
pp. 376-379
Author(s):  
Nan Lu ◽  
Jia Chuan Chen ◽  
Gui Hua Yang
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Membrane Bioreactor ◽  
Removal Rate ◽  
Treatment Technology ◽  
Effect Of Ph ◽  
Maximum Value

Membrane bioreactor is a combination of membrane and sewage biological treatment technology, which is the new wastewater treatment technology .In this paper, the effect of pH and NH3-N load on membrane bioreactor for wastewater treatment is studied. Through the use of artificial mixed wastewater experiments,the results are as follows:The effect of pH on the effluent COD is not obvious, on the removal of NH3-N is very large. Taking into account of removal of organics and NH3-N, the pH should be controlled at 8.0.The removal rate of NH3-N decreased significantly with the increase of the NH3-N load. When the NH3-N load is 0.023 Kg/m3· d, the removal rate reach the maximum value. In this case,the load of COD is 1.1 Kg/ m3.d.

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