scholarly journals KECEPATAN PERTUMBUHAN KAPANG (Trichoderma harzianum Rifai A1300-F006) DAN AKTIVITAS SELULASE DALAM PENANGANANAN SAMPAH SELULOSA

2017 ◽  
Vol 4 (1) ◽  
pp. 35
Author(s):  
Pebriana Nasution ◽  
. Periadnadi ◽  
. Nurmiati

Production of waste in urban areas reached 0.5 kg/person /day and 80% consisted of organic waste, one of many types of waste mostly generated is household waste. Generally, this household organic waste containing structural compoundsuch us long chains of cellulose.Therefore, the use of microorganism that can produce cellulase is very important to reduce the weight of garbage. Trichoderma harzianumis known as the most potential mold compared to other molds in converting cellulose. Sawdust and bran contain cellulose and hemicellulose that can be used as the main component in the mediafor its growth. The objectives of this study was: To find an effective ratio between sawdust and bran as growth mediafor Trichoderma harzianum, To know the cellulase activity of Trichoderma harzianum. This study has been conducted from April 2015 to Juli 2015 in the Laboratory of Microbiology, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Andalas. The results of this study concluded that an effective ratio between sawdust and bran as a growth media for Trichoderma harzianumwhich degraded organic waste was 50:50. The highest activity of cellulase in degrading organic waste is 100%.

2020 ◽  
Vol 7 (2) ◽  
pp. 317
Author(s):  
Rifky Taufiq Fardian ◽  
Aufa Hanum ◽  
Santoso Tri Raharjo ◽  
Nurliana Cipta Apsari

ABSTRAKSalah satu dampak dari proses pembangunan adalah pencemaran dan kerusakan lingkungan. Pertumbuhan penduduk yang pesat terutama di daerah perkotaan dengan perilaku membuang sampah yang tidak baik menyebabkan berbagai limbah yang harus diserap oleh lingkungan, terutama limbah domestik atau limbah rumah tangga. Komposisi sampah organik menempati persentase tertinggi hingga 57% di Kota Bandung, dimana limbah sisa makanan yang menempati urutan teratas yaitu sebesar 40%. Masyarakat dan pemerintah saja tidak cukup untuk mengatasi persoalan pengelolaan sampah. Keterlibatan dan partisipasi aktif perusahaan sebagai pihak swasta melalui kegiatan tanggung jawab sosial perusahaan dapat dilakukan melalui program-program yang mendukung pengolahan limbah organik berkelanjutan. Pengembangan program CSR yang baik pada suatu perusahaan sebaiknya dikaitakn dengan kebutuhan dan persoalan yang dihadapi masyarakat sekitar. Model Social Responsible Business Practice, merupakan salah satu jenis program yang bertujuan untuk mensejahterakan masyarakat, tapi juga memiliki korelasi positif dalam peningkatan produktivitas perusahaan secara operasional. Model praktik ini, memungkinkan aktivitas perusahaan yang salah satunya mencakup penyediaan fasilitas yang memenuhi tingkat keamanan dan keselamatan lingkungan dan dapat memelihara aktivitas pembangunan berkelanjutan. PT. Pertamina TBBM Bandung Group merupakan salah satu BUMN yang peduli dengan inovasi penanganan masalah sampah di Kota Bandung, melalui program BU MANIK (Budidaya Maggot dan Pupuk Organik), sejalan dengan program KANG PISMAN (Kurangi, Pisahkan, Manfaatkan) milik pemerintah Kota Bandung, yang bertujuan untuk membudidayakan maggot sebagai media utama pengurai limbah organik serta pakan ternak alami. Efektifitas program ini bergantung pada CSR PT. Pertamina TBBM Bandung Group sebagai lembaga yang memfasilitasi pelaksanaan program dan kelompok bank sampah sebagai komunitas yang diberdayakan, serta keterlibatan masyarakat dan dukungan pemerintah.Kata kunci: CSR, pengelolaan sampah, sumber daya berkelanjutan, pemberdayaan ABSTRACTOne of the impacts of the development process is environmental pollution and damage. Rapid population growth, especially in urban areas with bad waste disposal behavior, causes a variety of waste that must be absorbed by the environment, especially domestic waste or household waste. The composition of organic waste occupies the highest percentage up to 57% in the city of Bandung, where food waste that occupies the top rank is 40%. The community and the government alone are not enough to overcome the problem of waste management. The involvement and active participation of companies as private parties through corporate social responsibility activities can be done through programs that support sustainable organic waste treatment. The development of a good CSR program in a company should be related to the needs and problems faced by the surrounding community. Social Responsible Business Practice Model, is one type of program that aims to prosper the community, but also has a positive correlation in increasing company operational productivity. This practice model allows company activities, one of which includes the provision of facilities that meet the level of environmental security and safety and can maintain sustainable development activities. PT. Pertamina TBBM Bandung Group is one of the BUMN that is concerned with the innovation of handling waste problems in the city of Bandung, through the BU MANIK (Cultivating Maggot and Organic Fertilizer) program, in line with the KANG PISMAN program (Reduce, Separate, Utilize) the Bandung city government, which aims to cultivate maggot as the main media to decompose organic waste and natural animal feed. The effectiveness of this program depends on the CSR of PT. Pertamina TBBM Bandung Group as an institution that facilitates the implementation of programs and groups of waste banks as an empowered community; as well as community involvement and government support.Keywords: CSR, waste management, sustainable resource, empowerment


2020 ◽  
Vol 29 (5) ◽  
pp. 74-88
Author(s):  
Aleksandr Larichev ◽  
Emil Markwart

Local government as a political, legal and social institution finds itself in a very difficult period of development in Russia. The long-established tendency of its subordination to the state has intensified today in connection with the newly adopted constitutional amendments. At the same time, it seems obvious that further “embedding” of local government into the state management vertical, in the absence of any positive effect in terms of solving socio-economic and infrastructural problems, will inevitably lead to other hard to reverse, negative results both for local government institutions and the system of public authority as a whole. The normal functioning of local government requires, however, not only the presence of its sufficient institutional and functional autonomy from the state, but also an adequate territorial and social base for its implementation. To ensure the formation of viable territorial collectives, especially in urban areas, it seems appropriate to promote the development of self-government based on local groups at the intra-municipal level. Such local groups can independently manage issues of local importance on a small scale (landscaping, social volunteering, and neighborly mutual assistance), and provide, within the boundaries of a local territory, due civil control over the maintenance by municipal authorities of more complex and large-scale local issues (repair and development of infrastructure, removal of solid household waste and more). At the same time, the development of local communities can by no means be a self-sufficient and substitutional mechanism, whose introduction would end the need for democracy in the full scope of municipal structures overall. In this regard, the experience of local communities’ development in Germany, a state with legal traditions similar to Russian ones, with a centuries-old history of the development of territorial communities and a difficult path to building democracy and forming civil society, seems to be very interesting. Here, the progressive development of local forms of democracy and the participation of residents in local issue management are combined with stable mechanisms of municipal government, and the interaction of municipalities with the state does not torpedo the existing citizen forms of self-government. At the same time, the experience of Germany shows that the decentralization of public issue management which involves the local population can only be effective in a situation where, in addition to maintaining a full-fledged self-government mechanism at the general municipal level, relevant local communities are endowed with real competence and resources to influence local issue decision-making. The role of formalized local communities in urban areas, as the German experience shows, can not only facilitate the decentralization of solving public problems, but can also help in timely elimination of triggers for mobilizing citywide supercollectives with negative agendas. This experience seems useful and applicable in the Russian context.


2011 ◽  
Vol 1 (1) ◽  
pp. 38 ◽  
Author(s):  
Nita Noriko

Tofu industry produce organic waste in the form of liquid and solid. But, most of the industry cast away its waste to the surroundings directly without any processes before and contaminate the environment. One way out to solve this problem is by functionalizing the liquid waste as growth media of Spirulina platensis. In this research, exemic culture method with independent microalgae is used. Based on the result of the research, the optimal  growth of Spirulina platensis  if  cultured in 10% concentration of liquid waste with 4:6 comparison (400 ml Spirulina platensis : 600 ml tofu liquid waste). It is indicated by green color intensity of Spirulina platensis.


REAKTOR ◽  
2014 ◽  
Vol 15 (2) ◽  
pp. 117
Author(s):  
Gabriel Andari Kristanto ◽  
Dwi Rahayu ◽  
Evy Novita

High percentage of organic waste in urban areas makes composting as good alternative in waste processing. However, composting has not been effectively used and the result is not optimal. Previous studies found compost can be used as biocover media to reduce methane emission landfill. The objective of the study is to identify the characteristic of produced at temporary waste unit Depok, West Java and the effect of compaction toward the amount of methane removal in the landfill. Before applied as biocover media, compost was characterized followed by maturation process. Study on methane removal efficiency was conducted as batches in four reactors for 35 days with compaction rate varying from 750, 800, 850 dan 900 kg/m3. Composting media used in the research had 80 cm thickness with artificial gas consisting of 50% CH4 dan 50% CO2. Initially, compost did not meet criteria as mature compost based on SNI 19-7030-2004, and as media biocover hence a pre-treatment was needed to improve the quality compost to meet the requirements. Compaction rate of 900 kg/m3has highest elimination capacity of methane i.e. 98,31%±3,6% and 13,98±4,32 g/m3/hour.


2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Mohamad Noufal ◽  
Liu Yuanyuan ◽  
Zena Maalla ◽  
Sylvia Adipah

The absence of accurate information on the state of waste is a challenge to the solid waste management system in Syria. The local authorities commonly estimate the quantity of waste produced and its characterisation, which is the starting point for solid waste management planning. So, this paper aims to evaluate the generation and composition of household solid waste in Homs city, Syria. Also, the study presents factors influencing the waste generation rate and the waste composition. The study was carried out in 300 families from four zones in Homs city, and three sampling stages were conducted during the study duration, which started in July 2017 and ended in February 2019. The outcomes show that an average of 0.68 kg/per/day solid waste generated was calculated for the entire study area in Homs city. Also, the data analysis presents that organic waste constitutes the largest component in the waste mixture (69.1%) followed by plastic (10.6%), inert materials (8.7%), paper (4.6%), textile (2.5%), metal (1.2%), glass (1.1%), wood (0.6%), and hazardous materials (1.6%). The multiple linear regression results showed that the adjusted R2 value was found to be 0.557, 0.839, and 0.709 for the waste generation per capita, the daily household organic waste generation, and the daily household packaging waste generation, respectively. Also, according to Pearson’s coefficient values, a positive correlation was found between household waste generation and monthly income (r = 0.626), household size (r = 0.37), and age of the household head (r = 0.517), whereas a negative correlation was found between household waste generation and the education level of the household head (r = −0.649).


2019 ◽  
Vol 7 ◽  
pp. 10-19
Author(s):  
Amit Shankar Ranjit ◽  
Ronish Shakya ◽  
Sushila Gwachha ◽  
Razim Ganesh ◽  
Meera Prajapati ◽  
...  

Bhaktapur Municipality has been performing better to keep the city clean. However, scarcity of space for the land filling of the solid waste and proper segregation of waste at the source has been a hurdle for the Municipality. This paper aims to determine solid waste generation rate and to analyze overall situation of solid waste management of Bhaktapur Municipality. However, the data will not represent the seasonal and occasional variations. Additionally, waste from street-sweeping and large-scale institutional and commercial components of the Municipality has not been assessed. Arkin and Colton (1963) was referred for the sample size determination. Sample of 376 households were taken accordingly. Twenty representative samples each for commercial and institutional establishments were selected, and one each for special cases such as hospital, slaughter house and poultry has been assessed. Municipal household waste generation was found to be 0.093kg per capita per day which was chiefly composed of 77% organic, 18% plastic and 3% paper. Organic waste has been a major waste for institutions such as schools whereas at governmental and public offices, paper is the predominantly generated waste. Among commercial establishments, shops and restaurants mostly generate organic waste and that for departmental stores has been paper. Though collection system was found to be satisfactory, treatment and final disposal have been unsustainable. Available treatment facilities have been shut down whereas other infrastructural components have been lacking.


2000 ◽  
Vol 66 (2) ◽  
pp. 627-631 ◽  
Author(s):  
Inge M. Wouters ◽  
Jeroen Douwes ◽  
Gert Doekes ◽  
Peter S. Thorne ◽  
Bert Brunekreef ◽  
...  

ABSTRACT As part of environmental management policies in Europe, separate collection of organic household waste and nonorganic household waste has become increasingly common. As waste is often stored indoors, this policy might increase microbial exposure in the home environment. In this study we evaluated the association between indoor storage of organic waste and levels of microbial agents in house dust. The levels of bacterial endotoxins, mold β(1→3)-glucans, and fungal extracullar polysaccharides (EPS) of Aspergillus andPenicillium species were determined in house dust extracts as markers of microbial exposure. House dust samples were collected in 99 homes in The Netherlands selected on the basis of whether separated organic waste was present in the house. In homes in which separated organic waste was stored indoors for 1 week or more the levels of endotoxin, EPS, and glucan were 3.2-, 7.6-, and 4.6-fold higher, respectively (all P < 0.05), on both living room and kitchen floors than the levels in homes in which only nonorganic residual waste was stored indoors. Increased levels of endotoxin and EPS were observed, 2.6- and 2.1-fold (P < 0.1), respectively, when separated organic waste was stored indoors for 1 week or less, whereas storage of nonseparated waste indoors had no effect on microbial agent levels (P > 0.2). The presence of textile floor covering was another major determinant of microbial levels (P < 0.05). Our results indicate that increased microbial contaminant levels in homes are associated with indoor storage of separated organic waste. These increased levels might increase the risk of bioaerosol-related respiratory symptoms in susceptible people.


Agrologia ◽  
2018 ◽  
Vol 1 (2) ◽  
Author(s):  
M. C Manuputty ◽  
Agustinus Jacob ◽  
Johanis P. Johanis P

Solid waste management is an old problem in urban areas.  High population growth rates have caused the increasing amount of wastes generated. One of the efforts to solve the problem is to recycle the organic wastes by composting. The purpose of this research was to find out the influence of effective inoculants PROMI and EM4 on decomposition rate and compost quality from municipal waste in Ambon. This research used a Completely Randomized Design (CRD) in single factor experiment using 2 effective inoculants, i.e. PROMI (no Promi = P0, 24 gr Promi/10 kg organic waste = P1, 48 gr Promi/10 kg organic waste = P2) and EM4 (no EM4 = E0, 150 ml EM4/10 kg organic waste = E1, 300 ml EM4/10 kg organic waste = E2). The treatments consisted of the 2 types of inoculants with 3 dosages of each, and 3 replications. The result showed that the addition of effective inoculant EM4 with a dosage of 300 ml per 10 kg organic waste (E2) was more effective compared to the other treatments in accelerating the decomposition rate in 28 days. This was supported by decomposition rate indicators, such as compost physical characteristics, C/N ratio (11.56), and the increased compost quality, such as pH (8.03), Nitrogen (2.91%), Phosphorus (141.33 mg per 100g P2O5), Potassium (553.67 mg per100g K2O). This compost was in accordance to Indonesia National Standard (INS) or Standar Nasional Indonesia (SNI) of organic manure No. 19-7030-2004.


2019 ◽  
Vol 2 (2) ◽  
pp. 21-32
Author(s):  
Anak Agung Sagung Alit Widyastuty ◽  
Abdul Haqqi Adnan ◽  
Nurul Arijah Atrabina

Waste is a problem that must be faced by residential communities both in urban and rural settlements, so it needs to be systematically structured and sustainable. Conventional waste handling that has been implemented by the community cannot produce an appropriate solution, this is evident that there is still a large volume of waste that has not been managed properly. The purpose of implementing community service activities in the village of Sedapurklagen in Benjeng Gresik is to utilize household waste through compoter and biopori as well as the application of Biopori to treat household waste that can also reduce waterlogging during rain. The implementation method is used so that the purpose of this service activity is to empower the community about managing household waste to be composted through composter, as well as training on composting from composter and biopori. The target of this activity is the mothers of family welfare coaching (PKK) in the village of Sedapurklagen, Benjeng Gresik. The result of this service is that the community has begun to process organic waste to make compost and million biopori pipes around the Posapur, Sedapurklagen Gresik to reduce the presence of standing water during the rainy season. 


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