Utilization of low-cost waste materials in wastewater treatments

Waste utilization in fruits and vegetable processing industries is one of the important and challengeable jobs around the world. It is anticipated that the discarded fruits as well as its waste materials could be utilized for further industrial purposes viz. fermentation, extraction of bioactive components, extraction of functional ingredients etc. Researchers have focused on the utilization of pineapple waste primarily for extraction of bromelain enzyme and secondarily as low-cost raw material for the production of ethanol, phenolic anti-oxidants, organic acids, biogas and fiber production. Pertinent scientific and technological implications would produce better and more profitable markets for pineapple wastes. This review is the collection of previous reports along with our ongoing work on utilization of pineapple wastes J. Food Sci. Technol. Nepal, Vol. 6 (10-18), 2010 DOI: http://dx.doi.org/10.3126/jfstn.v6i0.8255

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Development of Low-Cost Auto Robot for Plastic Floating Garbage Collection using IoT

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.b4557.129219 ◽

2019 ◽

Vol 9 (2) ◽

pp. 3727-3732

Keyword(s):

Water Surface ◽

Garbage Collection ◽

Nearest Neighbor ◽

Low Cost ◽

Waste Materials ◽

Stationary Mode ◽

Water Pool ◽

Robot System ◽

Web Platform ◽

The Web

Nowadays, there is still much plastic waste floating in the sea and rivers, causing a limited number of officials to take care of this waste is not thoroughly. In this paper propose to develop the low-cost auto robot from waste materials based on Internet of Things for grabbing and collecting the floating garbage in the closed of water pool. The sensors and motors were mixed to control the robot on water surface and collect the plastic floating waste which is detected by sensors. To classified the floating garbage, the Fast Approximation Nearest Neighbor algorithm was applied to system in the web platform. The activities for garbage collection were submitted to social media such as LINE notify application. As a result, the auto robot system has the accuracy value at 94.4% and 98.8% for stationary mode and cover mode respectively.

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Utilization of Spent Coffee Grounds for Removal of Hazardous Substances from Water: A Review

Research Papers Faculty of Materials Science and Technology Slovak University of Technology ◽

10.2478/rput-2019-0015 ◽

2019 ◽

Vol 27 (44) ◽

pp. 145-152

Author(s):

Lenka Blinová ◽

Maroš Sirotiak

Keyword(s):

Water Consumption ◽

Suspended Solids ◽

Environmental Problem ◽

Low Cost ◽

Hazardous Substances ◽

Waste Materials ◽

Spent Coffee Grounds ◽

Coffee Grounds ◽

Textile Industries ◽

The One

Abstract Water is one of the most important substances on earth; nowadays, its pollution is one of the main environmental problems. Textile industries pose a significant environmental problem for earth. Firstly, it is due to their huge water consumption, and secondly, they produce a lot of wastewater contaminated with dyes, chemicals, suspended solids, etc. These contaminants can make water unsuitable for the desired purposes (e.g., drinking, watering, washing and showering). The one of the promising methods for the removal of dyes from the contaminated wastewater is adsorption. In this process, we can use low cost waste materials as an adsorbent. This paper presents an overview of utilization of the spent coffee grounds for the removal of dyes from wastewater.

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Adsorbents for Industrial Pollution Control

Adsorption Science & Technology ◽

10.1177/026361749701501004 ◽

1997 ◽

Vol 15 (10) ◽

pp. 777-787 ◽

Cited By ~ 80

Author(s):

Mohammad S. El-Geundi

Keyword(s):

Clay Minerals ◽

Pollution Control ◽

Industrial Pollution ◽

Activated Carbons ◽

Low Cost ◽

Waste Materials ◽

Adsorption Capacities ◽

And Performance ◽

Materials Used ◽

By Products

Adsorbent materials used for treating industrial pollutants are reviewed. The article consists of two parts. The first part considers new trends in traditional adsorbents such as activated carbons and zeolites. New low-cost adsorbents such as waste materials and clay minerals are discussed in the second part. It has been reported that activated carbons can be obtained from agricultural by-products such as shells and stones of various fruit by a simple single-stage method. This method differs from the traditional processes for the production of activated carbons. On the other hand, natural zeolites have been used as low-cost adsorbents in industrial pollution control. The extent of their application is not only related to their low cost, but also to the improved properties and performance characteristics which they possess. Recently, a variety of agricultural and industrial waste materials and clay minerals have been evaluated as new adsorbents with an excellent potential for the removal of different pollutants from wastewater. The new low-cost adsorbents obtained were found to have large adsorption capacities and good mechanical properties.

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WASTEWATER TREATMENT USING LOW-COST ADSORBENTS AND WASTE MATERIALS

Proceedings of the Water Environment Federation ◽

10.2175/193864700785156271 ◽

2000 ◽

Vol 2000 (5) ◽

pp. 11-34 ◽

Cited By ~ 4

Author(s):

Shirley Clark ◽

Pauline Brown ◽

Robert Pitt

Keyword(s):

Wastewater Treatment ◽

Low Cost ◽

Waste Materials

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