Industrial wastewater purification through metal pollution reduction employing microbes and magnetic nanocomposites

2021 ◽  
pp. 106673
Author(s):  
Pooja Sharma ◽  
Deblina Dutta ◽  
Aswathy Udayan ◽  
Sunil Kumar
Keyword(s):  
Metal Pollution ◽  
Industrial Wastewater ◽  
Pollution Reduction ◽  
Magnetic Nanocomposites ◽  
Wastewater Purification

scholarly journals A combination machine for industrial wastewater purification

2019 ◽  
Vol 698 ◽  
pp. 055037
Author(s):  
A V Moskvichova ◽  
D O Ignatkina ◽  
E V Moskvichova ◽  
D N Lebedev
Keyword(s):  
Industrial Wastewater ◽  
Wastewater Purification

Modeling of Ozonation for Industrial Wastewater Purification

2001 ◽  
Vol 73 (6) ◽  
pp. 595-595
Author(s):  
T. Jung ◽  
R. Krull ◽  
R. Pilz ◽  
D. C. Hempel
Keyword(s):  
Industrial Wastewater ◽  
Wastewater Purification

scholarly journals Two-step treatment of harmful industrial wastewater: an analysis of microbial reactor with integrated membrane retention for benzene and toluene removal

2015 ◽  
Vol 17 (4) ◽  
pp. 15-22 ◽  
Author(s):  
Anna Trusek-Holownia ◽  
Andrzej Noworyta
Keyword(s):  
Pseudomonas Fluorescens ◽  
Industrial Wastewater ◽  
Membrane Bioreactor ◽  
Membrane Separation ◽  
Integrated System ◽  
Integrated Process ◽  
Wastewater Purification ◽  
Toluene Removal ◽  
Bioreactor Operation ◽  
Operation Parameters

Abstract Standards for highly toxic and carcinogenic pollutants impose strict guidelines, requiring values close to zero, regarding the degradation of such pollutants in industrial streams. In many cases, classic bioremoval processes fail. Therefore, we proposed a stream leaving the microbial membrane bioreactor (MBR) that is directed to an additional membrane separation mode (NF/RO). Under certain conditions, the integrated process not only benefits the environment but may also increase the profitability of the bioreactor operation. An appropriate model was developed and tested in which the bioremoval of benzene and toluene by Pseudomonas fluorescens was used as an example. This paper presents equations for selecting the operation parameters of the integrated system to achieve the expected degree of industrial wastewater purification.

scholarly journals Combining Electrocatalysts and Biobased Adsorbents for Sustainable Denitrification

2020 ◽  
Author(s):  
Zili Ma ◽  
Matthias Klimpel ◽  
Serhiy Budnyk ◽  
Anna Rokicińska ◽  
Piotr Kustrowski ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Supporting Electrolyte ◽  
Wastewater Purification ◽  
Efficient Treatment ◽  
Integrated Method ◽  
Ammonia Recovery ◽  
Real Wastewater ◽  
Wastewater Samples ◽  
Adsorption Treatment ◽  
Crucial Part

<div><p>Efficient treatment of domestic and industrial wastewater is one of the major challenges of the 21<sup>st</sup> century. Among the inorganic pollutants, nitrogen species are significant contaminants and the management of the nitrogen cycle is one the most crucial part of wastewater purification. Herein, we report an integrated method that minimizes the amount of used chemicals, can be empowered by renewable energy, uses renewables materials for ammonia recovery and is scalable. Complete denitrification of wastewater was achieved by combining electrochemical and adsorption treatment for real wastewater samples from the Stockholm water pilot plant. 98% of nitrate was selectively converted to ammonia over abundant copper electrocatalysts in Na<sub>2</sub>SO<sub>4</sub> supporting electrolyte at –0.6 V <i>vs.</i> RHE within three hours. The valorized nitrate in form of ammonia could be recovered by means of cheap Kraft Lignin-SiO<sub>2</sub> sorbents to achieve a total denitrification. The presented method is economically feasible, scalable and contributes to sustainable recycling within a circular economy.</p></div>

scholarly journals Preliminary studies on the use of Fenton reagent to reduce pollution from wastewater from the production of household chemicals

2018 ◽  
Vol 50 (4) ◽  
pp. 301-312
Author(s):  
Maciej Malarski ◽  
Justyna Czajkowska ◽  
Piotr Nowak
Keyword(s):  
Waste Water ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Pollution Reduction ◽  
Fenton Reagent ◽  
Chemistry Industry ◽  
Limit Values ◽  
Phenol Solution ◽  
Household Chemicals ◽  
Industrial Sewage

Abstract Industrial sewage from the production of household chemicals contain large amounts of impurities in the form of ionic and non-ionic surfactants, detergents, active extenders, enzymes. The mixture of these components means that the reduction of pollutants from this type of waste-water is very burdensome. The article presents the results of preliminary laboratory tests of the possibility of using Fenton reaction in the reduction of pollution in wastewater from the household chemistry industry. The reduction of impurities was determined by the concentration of COD. The tests were carried out on samples of wastewater taken from an industrial wastewater treatment plant from the production of household chemistry. A pollution reduction of 24.7–32.3% was achieved. On the basis of the preliminary tests carried out, the need to better match the doses of reagents to carry out pollution reduction was determined. Despite obtaining values exceeding the limit values for introducing this type of sewage into the sewage system and into the environment, the conducted tests can be considered as prognostic. To compare the process carried out on industrial waste-water, a reduction of impurities was carried out using the Fenton reagent in the standard phenol solution.

scholarly journals Recommendations for the Aluminum and Iron-Containing Composite Flocculants-Coagulants Use for the Purification of Natural River Waters and Industrial Wastewater

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Kudryavtsev P
Keyword(s):  
Industrial Wastewater ◽  
Natural Waters ◽  
Magnetic Treatment ◽  
Wastewater Purification ◽  
River Waters ◽  
Industrial Wastewaters ◽  
Iron Salts

Coagulation is the most widespread method of natural and wastewater purification from the bulk of colloidal, finely dispersed, and partially dissolved contaminants. The characteristics of the new composite flocculants-coagulants ASFC and ISFC developed by the authors compared to traditional aluminum and iron salts are given. The characteristics of natural waters, which were used to study the efficiency of using the obtained flocculants-coagulants, are given. To compare the effect of the developed materials with known products, we used such a parameter as their coagulation ability to purify high-color water from the Orsha river and medium-color water from the Volga and Tvertsa rivers in Russia. An attempt is made to assess the effect of magnetic treatment of the developed composite flocculants-coagulants. Based on the conducted research and production tests, recommendations were developed to use aluminum and iron-containing composite flocculants-coagulants to purify natural river waters and industrial wastewaters.

INDUSTRIAL WASTEWATER PURIFICATION FROM OIL AND HEAVY METALS

2014 ◽  
Vol 4 (3) ◽  
pp. 60-64
Author(s):  
Vladimir Dmitrievich NAZAROV ◽  
Konstantin Konstantinovich BARYKIN ◽  
Sergey Vladimirovich FURSOV
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Industrial Wastewater ◽  
Natural Waters ◽  
Water Protection ◽  
Wastewater Purification ◽  
Republic Of Bashkortostan ◽  
Water Cleaning ◽  
The Republic ◽  
Quantitative Indicators

The main industries of the Republic of Bashkortostan discharging pollutants to surface waters are presented. The quantitative indicators of natural waters volumes abstracted by enterprises of fuel, chemical and petrochemical industries are viewed as well as mass of pollutants discharged with sewage. The basic problems of the industry of water protection are presented. Device for water cleaning from oil and heavy metals based on galvanochemical method of water treatment is proposed and described. The results of industrial water cleaning from a number of impurities by galvano coagulation are viewed.

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