scholarly journals Research Status and Countermeasures of photocatalyst in Water Pollution Treatment

2021 ◽  
Vol 233 ◽  
pp. 01128
Author(s):  
Junye Li
Keyword(s):  
Water Pollution ◽  
Water Resources ◽  
Natural Resources ◽  
Treatment Method ◽  
Treatment Technology ◽  
Urgent Task ◽  
Pollution Treatment ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Positive Effect

With economic development and population growth, the demand for fresh water resources is also increasing. However, affected by sewage discharge from industry, agriculture, mining and domestic, not only the ecological environment and natural resources are seriously damaged, but also the water resources available for people to drink are decreasing day by day. How to improve the water pollution treatment technology has become an urgent task. Because of the high cost and great limitation, the traditional treatment method has no significant effect in water pollution control. As an advanced oxidation technology, photocatalyst can effectively degrade pollutants in water pollution, and has a positive effect on improving water quality, protecting natural resources and maintaining ecological balance.

scholarly journals FAKTOR-FAKTOR PENYEBAB TERJADINYA PENCEMARAN AIR DI SUNGAI BINDU

2021 ◽  
Vol 3 (2) ◽  
pp. 122-135
Author(s):  
I Wayan Eka Artajaya, Ni Kadek Felyanita Purnama Putri
Keyword(s):  
Water Pollution ◽  
Water Resources ◽  
Natural Resources ◽  
Human Activities ◽  
Human Life ◽  
Surrounding Environment ◽  
Living Things ◽  
Renewable Natural Resources

Indonesia is a very large and wide country, consisting of many islands and abundant natural resources. Natural resources in Indonesia are everything that comes from nature that is used to meet the needs of human life. Generally, natural resources in Indonesia can be classified based on their nature, namely renewable natural resources and non-renewable natural resources. Humans are very dependent on natural resources and the sustainability of natural resources is strongly influenced by human activities. Watershed is one of the natural resources that is very complex and consists of various components that make it up. The functions and benefits of water resources themselves, including rivers, require various efforts to improve and protect water so that it is efficient and effective for living things and the surrounding environment. One of them is the Bindu river in the Kesiman Traditional Village. The Bindu River is widely used by the community, causing water pollution in the Bindu river, such as the Kesiman Traditional Village which has an important role in suppressing the occurrence of water pollution that occurs in the Bindu river.   Negara Indonesia merupakan negara yang sangat besar dan luas, terdiri dari banyak pulau dan sumber daya alam yang melimpah. Sumber daya alam di Indonesia merupakan segala sesuatu yang berasal dari alam yang digunakan untuk memenuhi kebutuhan hidup manusia. Umumnya sumber daya alam di Indonesia dapat digolongkan berdasarkan sifatnya yaitu sumber daya alam yang dapat diperbaharui dan sumber daya alam yang tidak dapat diperbaharui. Manusia sangat bergantung pada sumber daya alam dan kelestarian sumber daya alam sangat dipengaruhi oleh aktivitas manusia. Daerah aliran sungai merupakan salah satu sumber daya alam yang sangat kompleks dan terdiri dari berbagai komponen yang menyusunnya. Fungsi dan manfaat sumber daya air sendiri termasuk sungai memerlukan berbagai upaya untuk peningkatan dan perlindungan air agar berdaya guna dan berhasil guna bagi makhluk hidup dan lingkungan sekitar. Salah satunya adalah sungai Bindu yang berada di Desa Adat Kesiman. Sungai Bindu banyak dimanfaatkan oleh masyarakat sehingga menyebabkan terjadinya pencemaran air di sungai Bindu, seperti Desa Adat Kesiman memiliki peranan penting dalam menekan terjadinya pencemaran air yang terjadi di sungai Bindu.

scholarly journals The fabrication of a Co3O4/graphene oxide (GO)/polyacrylonitrile (PAN) nanofiber membrane for the degradation of Orange II by advanced oxidation technology

RSC Advances ◽  
2019 ◽  
Vol 9 (63) ◽  
pp. 36517-36523
Author(s):  
Hao Zhang ◽  
Weihua Liu ◽  
Feng Tian ◽  
Zhongfeng Tang ◽  
Haitao Lin
Keyword(s):  
Graphene Oxide ◽  
Water Resources ◽  
Advanced Oxidation ◽  
Important Task ◽  
Orange Ii ◽  
Nanofiber Membrane ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Pan Nanofiber

Treating water that has been polluted with chemical dyes is an important task related to water resources.

scholarly journals MICROBIAL FUEL CELL (MFC) IN TREATING SPENT CAUSTIC WASTEWATER

2018 ◽  
Vol 3 (1) ◽  
pp. 17-25
Author(s):  
Norsafiah Fazli ◽  
Noor Sabrina Ahmad Mutamim ◽  
Mohd Faizal Ali
Keyword(s):  
Water Pollution ◽  
Wastewater Treatment ◽  
Fuel Cell ◽  
Natural Resources ◽  
Microbial Fuel Cell ◽  
Treatment Method ◽  
Treated Wastewater ◽  
The World ◽  
Low Efficiency ◽  
Spent Caustic

Some of the major problems encountered by the world are water pollution and natural resources depletion. One of the major factors which contribute to water pollution is insufficiently treated wastewater whereas the depletion of natural resources is due to the dependability of the fossil fuel as the main energy source. Both of these issues show the world urgently required an effective technology of wastewater treatment and energyrecovery. Microbial Fuel Cell (MFC) is a treatment method that can achieve the needs of effective treatment of wastewater and energy recovery simultaneously. As mentioned, insufficiently treated wastewater is one of the main causes which contributes to water pollution. Spent caustic wastewater is one of the industrial wastewater that is difficult to be treated, handled and disposed due to its noxious properties. Existing treatment method of treating spent caustic wastewater are limited by low efficiency. However, by applying MFCs, organic and inorganic contaminants are oxidized by biomass and produce electron that is transferred to electrode. The movement of the electron from anode to cathode generate electricity and turns MFC into a treatment method that able to provide both wastewater treatment and energy production. This article presents a review of spent caustic wastewater and its existing treatment method as well as the MFC researches in terms of its configuration and factors affecting its performance

scholarly journals Research Progress of Advanced Oxidation Technology for Drinking Water Treatment

2021 ◽  
Vol 267 ◽  
pp. 02065
Author(s):  
lixi Liu ◽  
zhili Chen
Keyword(s):  
Water Pollution ◽  
Hydrogen Peroxide ◽  
Titanium Dioxide ◽  
Water Treatment ◽  
Low Cost ◽  
Drinking Water Treatment ◽  
Advanced Oxidation ◽  
Research Progress ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Advanced oxidation technology is attracting attention as an effective method of water treatment that can degrade various organic pollutants. The combination of photocatalysis (UV) and ozone (O3) and titanium dioxide (TiO2) is a promising advanced oxidation technology. The combination of ozone, hydrogen peroxide, ultraviolet light and other oxidants for catalytic oxidation is also the current mainstream advanced oxidation technology. They can effectively degrade emerging water pollutants and alleviate water pollution problems. Titanium dioxide, hydrogen peroxide, and ozone are all popular catalysts because of their low cost, non-toxicity, strong oxidizing ability, and easy contact with various surfaces.

scholarly journals Photocatalysis in the treatment and disinfection of water. Part I. Theoretical backgrounds / Fotokataliza w oczyszczaniu i dezynfekcji wody część i. podstawy teoretyczne

2012 ◽  
Vol 19 (4) ◽  
pp. 489-512 ◽  
Author(s):  
Michał Bodzek ◽  
Mariola Rajca
Keyword(s):  
Low Cost ◽  
Membrane Reactors ◽  
Treatment Technology ◽  
Water And Wastewater Treatment ◽  
Wastewater Treatment Process ◽  
Photocatalytic Reactor ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Persistent Organic Compounds ◽  
Water And Wastewater

Abstract Photocatalysis process belongs to an advanced oxidation technology for the removal of persistent organic compounds and microorganisms from water. It is the technology with a great potential, a low-cost, environmental friendly and sustainable treatment technology to align with the “zero” waste scheme in the water/wastewater industry. At present, the main technical barriers that impede its full commercialization remained on the post-recovery of the catalyst particles after water treatment. This paper reviews the background of the process and photooxidation mechanisms of the organic pollutants and microorganisms. The review of the latest progresses of engineered-photocatalysts, photo-reactor systems, and the kinetics and modeling associated with the photocatalytic and photodisinfection water and wastewater treatment process, has been presented. A number of potential and commercial photocatalytic reactor configurations are discussed, in particular the photocatalytic membrane reactors. The effects of key photo-reactor operation parameters and water quality on the photoprocess performances in terms of the mineralization and disinfection are assessed.

Study of Advanced Oxidation Technology on Post Treatment Wastewater of Pulp & Paper Mills

2014 ◽  
Vol 955-959 ◽  
pp. 2697-2700
Author(s):  
Ting Zhi Liu ◽  
Shuai Li ◽  
Fang Chang ◽  
Hao Yu Wang
Keyword(s):  
Fenton Oxidation ◽  
Treated Wastewater ◽  
Treatment Technology ◽  
Reaction Conditions ◽  
Paper Mills ◽  
Initial Ph ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Optimized Conditions

In this article, Fenton oxidation treatment technology was employed to the improving of quality of post treated wastewater from pulp & paper mills in order to increase the recycling ratio of final treated wastewater. The reaction conditions were optimized through single-factor experiments and the removal of color were tested for the optimizing. It was found in this study that the color of Fenton oxidation treated water was variegated with the extending of settling time. The optimized conditions were: Dosage of H2O2 was 682.1mg/L(30% m/m), 1.5 times theoretical consumption, 205mg/L FeSO47H2O (H2O2:FeSO4=15:1), the initial pH and the reaction time were 4.5 and 40min, respectively. The removal of the color and COD were 51.3% and 80% after Fenton treatment. GC-MS analysis shown that the contents of organic extracts and most of organic compounds reduced significantly after the oxidational treatment.

A Curriculum in Soil and Water Resources for Natural Resources Science

1991 ◽  
Vol 20 (2) ◽  
pp. 162-165 ◽  
Author(s):  
Peter M. Groffman ◽  
William R. Wright ◽  
Arthur J. Gold ◽  
Peter V. August ◽  
Charles G. McKiel
Keyword(s):  
Water Resources ◽  
Natural Resources ◽  
Soil And Water

scholarly journals The Role of Technology in Greenhouse Agriculture: Towards a Sustainable Intensification in Campo de Dalías (Almería, Spain)

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 101
Author(s):  
Antonio J. Mendoza-Fernández ◽  
Araceli Peña-Fernández ◽  
Luis Molina ◽  
Pedro A. Aguilera
Keyword(s):  
Land Use ◽  
Economic Development ◽  
Water Resources ◽  
Natural Resources ◽  
Temporal Evolution ◽  
Technological Development ◽  
Sustainable Intensification ◽  
Short Period ◽  
Cultivation Techniques

Campo de Dalías, located in southeastern Spain, is the greatest European exponent of greenhouse agriculture. The development of this type of agriculture has led to an exponential economic development of one of the poorest areas of Spain, in a short period of time. Simultaneously, it has brought about a serious alteration of natural resources. This article will study the temporal evolution of changes in land use, and the exploitation of groundwater. Likewise, this study will delve into the technological development in greenhouses (irrigation techniques, new water resources, greenhouse structures or improvement in cultivation techniques) seeking a sustainable intensification of agriculture under plastic. This sustainable intensification also implies the conservation of existing natural areas.

Optimization of Removal of 2-methylisoborneol from Drinking Water using UV/H2O2

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Fengxun Tan ◽  
Haihan Chen ◽  
Daoji Wu ◽  
Nan Lu ◽  
Zhimin Gao
Keyword(s):  
Drinking Water ◽  
Conventional Treatment ◽  
Advanced Oxidation ◽  
Odor Threshold ◽  
Treatment Processes ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Abstract2-methylisoborneol (2-MIB) is a common odor-causing compound in drinking water with a low odor threshold (10 ng/L). Since conventional treatment processes cannot effectively remove it, this study investigated an advanced oxidation technology: UV/H

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