Waste Removal Articles on Environmental XPRT

Methods of Purification by Water Innovations, Inc.

Carbon Filtration is used for several reasons. Its primary purpose is the reduction of chlorine to less than 0.1 ppm. Chorine can damage softener resins, reverse osmosis membranes, and mixed bed deionization resins. Activated carbon will also help control tastes and odors, provide organic and hazardous organic chemical reduction, and some particulate reduction. ...

Jun. 21, 2017

By Water Innovations, Inc

How Tire Shredding Protects Wildlife

One of the most revolutionary inventions in the history of mankind was the wheel, and the best upgrade to that invention was the rubber tire, which overcame the limitations of wooden or metal wheels and made it possible to have smooth rides at fast speeds. However, there is a significant drawback to using rubber tires: eventually, they get too worn out to be useful as tires anymore and have to ...

Jun. 14, 2017

By ECO Green Equipment

Ethylene Removal: Reduce Wasting Food

ETHYLENE REMOVAL: Reduction of fruit and vegetable waste throughout the distribution chain Approximately one-third of the worldwide production of foods for human consumption is lost or squandered, equivalent to some 1,300 million tonnes each year. This means that enormous ...

Oct. 8, 2015

By Bioconservacion SA

Mercury Removal

The Adventus Mercury Removal AdvantageResponsible environmental experts in the academic, business and regulatory communities are increasingly more worried about the high levels of mercury contamination affecting many parts of the world. The international community is focusing their attention on this growing problem and EHC-M will clearly help, as it is perfectly suited for treating environments ...

Apr. 16, 2007

Arsenic Removal

The Arsenic Removal ProcessArsenic, a naturally occurring element, is found throughout the environment; for most people, food is the major source of exposure. Acute (short-term) high-level inhalation exposure to arsenic dust or fumes has resulted in gastrointestinal effects (nausea, diarrhea, abdominal pain); central and peripheral nervous system disorders have occurred in workers acutely ...

Apr. 16, 2007

Removal of cyanide from liquid wastes by modified clinoptilolite

This paper describes the preparation and evaluation of various cationic forms of clinoptilolite for removal of cyanide from aqueous solutions. The cobalt form of the zeolite showed the highest uptake of 1.95 meq of cyanide per gram of zeolite, whereas the uptake of natural forms is 0.070 meq g-1. The kinetics of cyanide desorption into solutions with different ionic strength were studied. ...

Jan. 28, 2005

By Inderscience Publishers

Dynamic restructuring of waste removal in decentral plants

The mechanical and biological treatment of residual waste meets the requirements for the production of defined material flows out of nonspecific waste. The specific material flows can reach the quality demands of the industry by wet screening, when beforehand the result of composting is a far-reaching biological stabilisation of the residual waste. Three fractions can be separated: recyclable and ...

Jan. 2, 1999

By ORBIT e.V.

Removal of viruses and indicators by anaerobic membrane bioreactor treating animal waste

Appropriate treatment of agricultural waste is necessary for the protection of public health in rural areas because land-applied animal manure may transmit zoonotic disease. In this study, we evaluated the potential of using a pilot anaerobic membrane bioreactor (AnMBR) to treat agricultural waste. The AnMBR system, following a conventional complete mix anaerobic digester (CMAD), achieved high ...

May 15, 2008

By Soil Science Society of America (SSSA)

Removal of hexavalent chromium from aqueous solution by lignocellulosic solid wastes

The batch removal of Cr(VI) from aqueous solution using lignocellulosic solid wastes such as sawdust and pine leaves under different experimental conditions was investigated in this study. The influence of pH, temperature, contact time, initial concentration of Cr(VI) and particle size on the chromium removal was investigated. Adsorption of Cr(VI) is highly pH-dependent and the results indicate ...

Jun. 25, 2006

By Center for Environment and Energy Research & Studies (CEERS)

Go for the Cheap but Secure Lab Waste Removal and Recycling Plan!

In the last couple of decades, the number of laboratories that are part of universities, hospitals and other facilities is growing and this is definitely good news. Thanks to these labs we can improve our quality of life. However, during the process of research and use of these labs, specialists who work there create lab waste. This waste can be potentially dangerous and this is the reason why ...

Feb. 23, 2016

By I Global Asset Management

Using ‘TransMembraneChemiSorption’ (TMCS) for Ammonia Removal from Industrial Waste Waters

Dissolved gases like NH3, H2S or NOx in waste water lead to contamination in the sewage system and high treatment costs for municipal waste water treatment plants. This translates into high penalty fees that are paid by the company discharging these contaminates into the sewage stream. In many cases a membranebased water treatment system can be justified because of a favorable pay back time. ...

Oct. 20, 2009

CERCLA remedial and removal actions at historic waste disposal areas.

Apache Nitrogen Products, Inc. (ANP) has operated a nitrogen-based fertilizer and explosives manufacturing facility in rural Cochise County since 1921. Using a feedstock of anhydrous ammonia, current manufacturing processes produce nitric acid, solid and liquid ammonium nitrate, and various ammonium nitrate-based fertilizer products for regional mining and agricultural markets. Historically, ...

Apr. 14, 2010

By Hargis + Associates Inc

Preparation of cationic waste paper and its application in poisonous dye removal

Cationic paper was prepared by reaction of paper with 2,3-epoxypropyltrimethylammonium chloride in aqueous suspension, and tested as low-cost adsorbent for wastewater treatment. The experimental results revealed that anionic dyes (Acid Orange 7, Acid Red 18, and Acid Blue 92) were adsorbed on the cationic paper nicely. The maximum amount of dye Acid Orange 7 adsorbed on cationic paper was 337.2 ...

Jun. 11, 2013

By IWA Publishing

Adsorptive removal of As(III) from aqueous solution by waste litchi pericarps

The present study investigated the removal of arsenite anions (AsO33−, referred to as As(III)) from aqueous solutions by waste litchi pericarps (LPs). Influential factors such as the adsorbent dose, contact time, solution pH, and initial As(III) concentration were investigated. The optimum conditions for As(III) adsorption by the LPs occurred at a contact time of 60 min, adsorbent dose ...

Aug. 13, 2016

By IWA Publishing

Use of various agricultural wastes for the removal of heavy metal ions

There is a need to develop innovative and alternative technologies that can remove toxic heavy metal pollutants from wastewater. In this study, two agricultural residues, cotton stalks and apricot seeds, were used to adsorb copper and lead in solutions. Sorption capacities of agricultural wastes were significantly affected by solution pH, adsorbent mass and adsorbent particle size. The adsorption ...

Oct. 17, 2008

By Inderscience Publishers

Removal of methylene blue by adsorption on aluminosilicate waste: equilibrium, kinetic and thermodynamic parameters

An aluminosilicate waste (AW) was investigated as adsorbent for methylene blue (MB) dye. AW was characterized by petrography, X-ray diffractometry, X-ray fluorescence, scanning electron microscopy, thermogravimetry and zeta potential measurements. It was found that AW contains kaolinite, and other minor components such as quartz, muscovite, smectite, siderite, pyrite and organic compounds. The ...

Sep. 12, 2016

By IWA Publishing

The removal of thermo-tolerant coliform bacteria by immobilized waste stabilization pond algae

This study investigated the potential of laboratory- scale columns of immobilized micro-algae to disinfect effluents using thermo-tolerant coliforms (TTC) as a model system. Cells of a Chlorella species isolated from a waste stabilization pond complex in Northeast Brazil were immobilized in calcium alginate, packed into glass columns and incubated in contact with TTC suspensions for up to 24 ...

Mar. 1, 2011

By IWA Publishing

Removal of Radioactive Effluent Waste from Uranium Enrichments Plants

In an effort to reduce greenhouse emissions many nations and multi-national corporations are once again focusing on the development of safe radioactive sources for energy generation. After a hiatus of some 20 years commercial nuclear power plants are being developed globally to satisfy increasing global energy demands. Whether for generation of electrical power or in the production of fission ...

May 3, 2010

By Dynamic Adsorbents Inc.

Solving waste oil management and removal problems in power generating plants

If your plant is like most, it is doing a good job of preventing oily water waste and waste oils from escaping into the environment. But at what cost? As labor resources dwindle, operating and maintaining drainage systems, oil separators, and sometimes inadequate oil removal equipment is expensive. Paying higher than needed costs for waste oil disposal, filtration and water treatment due to these ...

Dec. 26, 2011

By Oil Skimmers, Inc.

Further contributions to nitrogen removal modelling in waste stabilization ponds

A large database from an experimental maturation pond system in Brazil was used to verify the agreement of field results with values predicted by some of the most widely accepted models to describe ammonium and total nitrogen (TN) removal in facultative and maturation ponds. The same database was used to derive a pH-independent linear model to predict ammonium removal in ponds, which was proved ...

Dec. 19, 2014

By IWA Publishing

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