scholarly journals Environmental Effect of the Coffee Waste and Anti-Microbial Property of Oyster Shell Waste Treatment

2017 ◽  
Vol 26 (2) ◽  
pp. 39-49 ◽  
Author(s):  
Thriveni Thenepalli ◽  
Chilakala Ramakrishna ◽  
Ji Whan Ahn
2019 ◽  
pp. 97
Author(s):  
Dora Melati Nurita Sandi ◽  
Ayu Wanda Febrian ◽  
Ella Nuritasari

Abstrak: Kampung Tiram merupakan kampung penghasil kerang dan tiram yang berada di Desa Kedungringin Banyuwangi. Berlimpahnya hasil laut berupa kerang dan tiram yang ada di Desa tersebut membuat banyaknya tumpukan limbah cangkang kerang tanpa dimanfaatkan secara maksimal. Hal tersebut yang mendasari penulis dan tim untuk melakukan sosialisasi dan pelatihan pemanfaatan limbah cangkang kerang dan tiram sehingga menjadikannya barang yang memiliki nilai jual. Limbah cangkang dijadikan barang yang selain memiliki nilai jual juga memiliki nilai seni. Limbah cangkang tersebut dijadikan mozaik yang membentuk gambar dan karakter. Tujuan utama dilaksanakannya sosialisasi dan pelatihan, yaitu untuk menambah pengetahuan masyarakat dan kesadaran masyarakat dalam memanfaatkan peluang usaha dari limbah cangkang kerang. Selain melakukan sosialisasi dan pelatihan, penulis dan tim melakukan kegiatan pembentukan kelompok usaha pemuda kreatif yang nantinya menjadi Usaha Mikro Kecil dan Menengah (UMKM) di Desa tersebut.Kata Kunci: Mozaik Kerang; UMKM; Pengolahan Limbah CangkangAbstract:  Kampung tiram is a village producing shells and oysters in the Village of Kedungringin Banyuwangi. The abundance of marine products in the form of shells and oysters in the village makes many piles of shell waste without being utilized optimally. This is what underlies the authors and the team to conduct socialization and training in the utilization of shell and oyster shell waste so that it becomes an item that has a sale value. Shell waste is used as an item which besides having sale value also has artistic value. The shell waste is made into a mosaic that forms images and characters. The main objective of the implementation of socialization and training, which is to increase public knowledge and public awareness in utilizing business opportunities from waste shells. In addition to conducting outreach and training, the writer and the team conducted activities to form a creative youth business group that would later become the Micro, Small and Medium Enterprises (MSMEs) in the Village.Keywords: Scallop Mosaics; MSMEs; Shellfish Waste Treatment


Recycling ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 35 ◽  
Author(s):  
Ramakrishna Chilakala ◽  
Chottitisupawong Thannaree ◽  
Eunsoo Justin Shin ◽  
Thriveni Thenepalli ◽  
Ji Whan Ahn

This paper studies the utilization and management of the waste mollusk shell. The two major export countries of mollusk shell are the Southeast Asia’s Thailand and the Philippines. First, the aquaculture of oysters and bivalve shells has been studied as background understanding. The effect of the global climate change on farming and the consequences of farming on the nearby environment and neighborhoods have also been discussed. The utilization technologies on the waste shell are available on a small scale and not industrialized. This study offers an enabling context under which a suitable method can take action to solve the overflow waste shell problem, and at the same time, provide sustainable management.


2020 ◽  
Vol 230 ◽  
pp. 116973 ◽  
Author(s):  
Ali Naqi ◽  
Salman Siddique ◽  
Hyeong-Ki Kim ◽  
Jeong Gook Jang

2018 ◽  
Vol 31 ◽  
pp. 05001
Author(s):  
Erni Setyowati ◽  
Gagoek Hardiman ◽  
Purwanto

This research aims to determine the acoustical properties of concrete material made of polyurethane and oyster shell waste as both fine aggregate and coarse aggregate comparing to other concrete mortar. Architecture needs aesthetics materials, so the innovation in architectural material should be driven through the efforts of research on materials for building designs. The DOE methods was used by mixing cement, oyster shell, sands, and polyurethane by composition of 160 ml:40 ml:100 ml: 120 ml respectively. Refer to the results of previous research, then cement consumption is reduced up to 20% to keep the concept of green material. This study compared three different compositions of mortars, namely portland cement concrete with gravel (PCG), polyurethane concrete of oyster shell (PCO) and concrete with plastics aggregate (PCP). The methods of acoustical tests were conducted refer to the ASTM E413-04 standard. The research results showed that polyurethane concrete with oyster shell waste aggregate has absorption coefficient 0.52 and STL 63 dB and has a more beautiful appearance when it was pressed into moulding. It can be concluded that polyurethane concrete with oyster shell aggregate (PCO) is well implemented in architectural acoustics-components.


BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 3545-3565
Author(s):  
Li-Li Ye ◽  
Yong-Shan Chen ◽  
Yu-Dao Chen ◽  
Lian-Wen Qian ◽  
Wen-Li Xiong ◽  
...  

Phytoremediation of metal-contaminated soil can be an eco-friendly technology. However, relatively long cultivation times impedes its popularization on a commercial scale. This study evaluated the effectiveness of lavender plants (Lavandula dentata L.) to remediate a highly chromium (Cr)-contaminated site through a pot experiment. The lavender growing soil was mixed both with and without biochar (2.5% w/w) + oyster shell waste (2.5% w/w) and biochar (2.5% w/w) + citrus peel waste (2.5% w/w). The results indicated that Cr(VI) accounted for 19.0% to 4.7% of the total soil Cr, while Cr(III) accounted for 81.0% to 95.3%, from the beginning to the end of the cultivation. The water-soluble Cr concentration decreased from 44.6 mg/kg to 7.5 mg/kg. The biomass of the lavender growing in the contaminated soil decreased by factors in the range between 4-fold and 6-found.The addition of soil amendments significantly reduced the (potential) bioavailable Cr (p < 0.05) in the range of 2 to 3 fold, consequently improving the growth of lavender in the highly toxic soil. In addition, the soil amendments significantly reduced the Cr bioaccumulation and the translocation from the roots to the shoots. These results showed that the cultivation of lavender with suitable amendments can effectively be used for phytomanagement techniques in highly contaminated soil.


2009 ◽  
Vol 100 (3) ◽  
pp. 1510-1513 ◽  
Author(s):  
Nobutake Nakatani ◽  
Hitoshi Takamori ◽  
Kazuhiko Takeda ◽  
Hiroshi Sakugawa
Keyword(s):  

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