scholarly journals Possibilities of Using Organic Waste after Biological and Physical Processing—An Overview

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1501
Author(s):  
Wiesław Szulc ◽  
Beata Rutkowska ◽  
Stanisław Gawroński ◽  
Elżbieta Wszelaczyńska

With a rapidly increasing amount of waste, waste management is an extremely important issue. Utilising processes such as combustion and biological processing significantly decreases the accumulation and volume of waste. Despite this, huge volumes of resulting waste that still need to be managed remain. This paper identifies various methods of processing organic waste, discussing both thermal and biological techniques for waste management. Additionally, this paper demonstrates that the end products remaining after processing waste are oftentimes functional for agricultural use. These materials are excellent byproducts used to produce various organic, mineral and organomineral fertilisers. For instance, it appears that the production of fertilisers is the most promising method of utilising fly ash that results from the combustion of waste. In order to minimise the environmental risk of polluting soil with heavy metals, waste, as well as ashes resulting from combustion, must meet the criteria for the limit of contaminants.

2014 ◽  
Vol 2 (2) ◽  
pp. 191 ◽  
Author(s):  
Mohammad Erdi Ferdiansyah ◽  
Arsiyah Arsiyah

The purpose of this study to describe and analyze the role of government and Sumringah Ngampelsari interests group on waste management basedempowerment in the Ngampelsari village. This study used qualitative approach. The results of this study indicated that the processing and utilization of organic waste is done by simple composting technology. In order to maximize the results of processing waste become compost, the community maintain ornamental plants and medicinal plants. While, inorganic waste to be processed into valuable goods. Waste management based on empowerment is provided by guidance about awareness to the citizens to cultivate their waste and used compost to plantornamental plants, traditional plants and provided of bins in their neighborhood.


2020 ◽  
Vol 2 (2) ◽  
pp. 1-9
Author(s):  
Sandra Madonna ◽  
◽  
Prismita Nursetyowati ◽  
Astrid Dewi Meilasari Sugiana ◽  
Tita Djuitaningsih

Kampung Hijau Mandiri is one of Tangerang Government’s Programs to increase public awareness for a clean, green, and beautiful surrounding. Ninety-eight of Kampung Hijau Mandiri were formed throughout Tangerang’s Sub-Districts, one of which is in RT 01 RW 06, Kreo Sub-District. Criteria for Kampung Hijau Mandiri include a lively, comfortable and clean village with waste sorting initiatives. Kreo, one of the densely populated villages in Tangerang, has 22,837 inhabitants. Waste generated in RT 01 RW 06, Kreo, Tangerang is around 2,040 liters/day, quite large and can be reduced. Presently, household wastes in RT 01 RW 06 are still managed conventionally using the collection and disposal system. The economic potential of household organic and inorganic waste has not been optimally utilized. Organic waste management through composting (Takakura baskets) and non-organic waste management through waste banks are considered appropriate for processing household wastes. Hence, the community develops a new habit of sorting and processing waste into productive means, reducing waste generation transported to landfills. The waste management educational mentoring program was attended by 14 people, especially housewives and Posyandu cadres, through presentations and question and answer. This activity has great potential to endure as housewives and Posyandu cadres in RT 01 RW 06 Kreo Sub-District are influential household stakeholders in their environment. Residents of RT 01 RW 06 Kreo Sub-District agreed to initiate waste bank establishments. This program is expected to increase citizen’s involvement in waste management. RT 01 RW 06 Kreo is an exemplary Kampung Hijau Mandiri.


1997 ◽  
Vol 35 (8) ◽  
pp. 231-238 ◽  
Author(s):  
Tay Joo Hwa ◽  
S. Jeyaseelan

Conditioning of sludges improves dewatering characteristics and reduces the quantity of sludge to be handled. Anaerobic digested sludge collected from a sewage treatment plant contained 1.8% to 8% oil. The increase of specific resistance and capillary suction time (CST) with increasing oil content observed in these samples indicates the interference of oil in dewatering. It has been found that addition of municipal solid wastes incinerator fly ash decreases the specific resistances and capillary suction times of oily sludges rapidly up to 3% dosage. Beyond 3% fly ash, the decrease is less significant and the solids content in the sludge cake increases. This optimum dosage remains the same for sludges with varying oil contents from 1.8% to 12%. The total suspended solids of filtrate decreases with fly ash dosage but the toxic concentrations of heavy metals increases considerably. However at the optimum dosage of 3%, concentrations of heavy metals are within the limits for discharging into the sewers. The correlations of CST with the dewatering characteristics such as specific resistance, filter yield and corrected filter yield are established. These correlations can be used to obtain a quick prediction on dewaterability.


2018 ◽  
Vol 251 ◽  
pp. 238-248 ◽  
Author(s):  
Christine Knoop ◽  
Michael Tietze ◽  
Christina Dornack ◽  
Thomas Raab

2021 ◽  
Vol 1143 (1) ◽  
pp. 012051
Author(s):  
A Z Abidin ◽  
H Bramantyo ◽  
M K Baroroh ◽  
C Egiyawati

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Daniel Dzepe ◽  
Paulin Nana ◽  
Hervé Mube Kuietche ◽  
Janaina Mitsue Kimpara ◽  
Ornela Magatsing ◽  
...  

AbstractProcessing organic waste using black soldier fly (BSF)-based technology offers a promising alternative for sustainable organic waste management and urban sanitation. This study was conducted to assess the influence of feeding strategies on the efficacy of BSF larvae to recycle organic wastes into value products. Fruit waste and chicken manure were used as organic waste samples while commercial chicken feed was used as a control, and were processed for 15 days in circular plastic containers (Ø 30 × 12 cm) with 50; 100; 150; and 200 mg/larva/day continuous and batch feeding diets, using 500 four-day-old larvae per diet, repeated four times. Larval survival rates were not significantly affected by the feeding strategies. However, average larval biomass of 83.69 ± 13.04 g and 82.46 ± 08.52 g was achieved for the continuous and batch feeding strategies, respectively, under favorable conditions. Larval feed reduction rates ranged from 24.65 ± 03.48% to 72.78 ± 01.48% and 24.52 ± 0.27% to 72.25 ± 12.13% with continuous and batch feeding strategies, respectively, and were significantly affected by the different daily diets. On the other hand, the bioconversion rates ranged from 13.34 ± 0.26% to 50.82 ± 02.27%, and the highest values were observed with the continuous feeding diets. This study confirms the efficacy of BSF larvae to thrive in different organic substrates and shows that the continuous feeding strategy can be better and enhance a sustainable small-scale organic waste management.


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