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INDONESIA
Jurnal Rekayasa Lingkungan
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 589 Documents
 38   39   40   41   42 
PENAMBAHAN ENZIM CAIRAN RUMEN LIMBAH RUMAH POTONG HEWAN PADA PAKAN BERBASIS WHEAT POLLARD DENGAN PROSES PENGOLAHAN PADA KOMPOSISI KIMIA PAKAN Dadik Pantaya., dkk
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1911

Abstract

The present study was conducted to clarify the effect of addition of enzymes from rumen liquor on performance broiler of pelleting feed with basal ration of wheat pollard with addition of enzymes and processing broiler diets. Ruminal enzymes were extracted from Australian Commercial Cross (ACC) cattles. Application of enzyme on wheat pollard. Enzyme was reacted with wheatpollard and mixed with another feedstuff before steam pelleting process. The combination nine experimental diets were used as follows three levels enzyme supplementation (0, 620 and 1.240 U/kg) and three levels steam temperature at (60, 80 and 100 oC) Feed particles size, hardness, PDI (Pellet Durability Index), moisture content, protein, GE and hemicellulosa were evaluated parameter devided into nine treatmens were used in this research. Data from Completely Randomized Design factorial 3 x 3 were analyzed with Anova, if differences were continued by Duncan’s new multiple range test. Enzyme supplementation decreased feed hardness and PDI. There were interaction beetwen enzyme and temperature for feed moisture content. Hemicellulosa was significantly reduced by steam temperature at 80 and 100 oC and enzyme supplementation 1.240 U/kgKey Words: enzyme liquor rumen, wheat pollard, steam pelleting, feed Chemical composition
PEMANFAATAN LIMBAH JAGUNG MENJADI PUPUK ORGANIK UNTUK PENYUBURAN LAHAN PERTANIAN Daru Mulyono
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1912

Abstract

The use of maize waste plant materials (stem, leaf, and husk cover) have high economic value to be processed become organic fertilizer for agricultural land fertilizer. Maize have several and quite high contents of macro and micro nutrients. This activity was hoped that the farmers can overcome the increasing price of inorganic fertilizer recently and furthermore farmers can reap higher income. Beside higher income the use of organic fertilizer can improve the nature and behaviourof land through improving of soil chemical, soil physical, and soil microorganism. Therefore, the appropriate technology for processing of maize become organic fertilizer is very important to be diffused or socialized to farmers.Keywords: fertilizer, maize waste
MODEL DINAMIK PENANGANAN SAMPAH (STUDI KASUS SOSIAL MASYARAKAT DI DKI JAKARTA) M. Ansorudin Sidik
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1913

Abstract

Social dynamic of of waste management is rarely discussed in a paper. Using causal loop diagram, this issue will be analyzed in this paper based on the case study of waste management in Jakarta. Problems occurred in Jakarta were identified using metaplan method carried out by BPPT to explore social problem of solid waste management. It is started from the fact that for managing waste,the regional government tends to use the top down approach rather than bottom up approach. The analysis shows the result that the problems are dynamic as social problems always changes, not static. Such dynamic tendency can be anticipated in the future by the regional government in accordance with the social changes occurred to people live in Jakarta.Key Wods : social dynamic, waste management, model dinamic
PEMANFAATAN TANAMAN GULMA KAYAMBANG (Salvinia Molesta) SEBAGAI BAHAN PAKAN AYAM BURAS MELALUI ENERGI METABOLISMENYA Sindu Akhadiarto
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1914

Abstract

Kayambang is water seed from Indonesia which can be used for animal feed. In village it is usually used for duck and village fowl (kampong chicken). Kayambang grows very much on water surface and have hight nutrition include energy and protein. Animal feed are used for growth requirement and to support sintetics reactionsform its body. Energy from the feed is not used for animal infull. In each ingredient at least has 4 kind of energy : Gross Energy, Digestible energy, Metobalic energy and netto energy. Metabolic energy is impotant to measure form each ingredient because it is used for all requirement such as maintanance, growth, feedlot and layer. This research has goal for knowing about metabolic energy which can be used for animal especially for village fowl.The methodology was done by 14 male village fowl (11 chicken for metabolic energy, 3 chicken for endogenous nitrogen). Individual was caged to collect feces. Kayambang was used as meal and given to the chicken. The results showed that Kayambang has energy contains potentially for village fowl. Total metabolic energy is 2857,56 and apparent metabolic energy is 2433,66 Kkal/kg.Key words : kayambang, village fowl, animal feed, nutrition.
EVALUASI KONDISI LINGKUNGAN PERAIRAN KAWASAN PULAU ABANG, GALANG BARU, BATAM BERDASARKAN ANALISA INDEKS STORET DAN SIMILARITAS CANBERA Suhendar I Sachoemar., dkk
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1915

Abstract

Evaluation of the water quality status at Abang Island Region was conducted by using the STORET and Canbera Similarity Indeks during Mei, June and October 2006. Thes analysis result shows that the water quality within this region was within the range of good to moderate. This condition indicate that the water quality status is still suitable and support for living marine biotic organism. During May, water quality was good and decrease in June and October due to the additional of the organic material from the land surface driven by precipitation as response to monsoonal change.Keywords : water quality, Abang island, Storet Index, Similarity Index, Canbera.
STRATIGRAFI BATUAN DAN KONDISI AKUIFER DI KAWASAN WISATA CANDI BOROBUDUR DAN PRAMBANAN Ig. Setyawan Purnama
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1916

Abstract

Borobudur and Prambanan Temples are icons of cultural tourism in Central Java and Yogyakarta. Increasing settlement, tourist and new facilities, especilly garden, cause the icreasing of groundwater usage. In the long term, the usage of groundwater that exceed the recharge can cause various impact such as land subsidence that can make damage of temples structure. The objectives of this study are to identify the rock stratigraphy in research area and know thecondition of aquifer and its groundwater potency. To achieve these goals, it is carried out geoelectric sounding in 10 samples point, namely five points in Borobudur Temple and five points in Prambanan Temple. To analyse sounding data, the resistivity data from field sounding are interpreted by Schlumberger O’Neil Programme. Base on the interpretation, can be determined rock stratigraphy, aquifer condition and qualitative potency estimation of groundwater in the research area. The results showed that the rock stratigraphy in sourrounding Borobudur and Prambanan Temples are different. The area surrounding Borobudur Temple consist of sand, gravel, tuff, lapilli, claystoneand sandstone, whereas in Prambanan are consist of sand, gravel, soil, rock fracture and sand clayed. Aquifer layer in Borobudur area are consist of sand, gravel , tuff and lapilli, whereas in Prambanan area are consist of sand and gravel. Base on its aquifer material, the groundwater potency in Prambanan area is higher than Borobudur area.Key words : rock stratigraphy, aquifer condition.
TEKNIK BIOFLOKULASI Alcaligenes latus PADA INDUSTRI TAPIOKA UNTUK MENGURANGI PENCEMARAN LINGKUNGAN Yuli Retnani
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1920

Abstract

Almost all of the tapioca industries in Bogor are small scale industries and have not implemented the cleaner production practices yet. Results of the survey showed that careless in discharging process of solid and liquid wastes and the absent of waste treatment caused pollution. Utilization of solid waste to handle liquid waste is one of the application of cleaner production. Onggok as solid waste has been utilized to minimize the negative effect of the liquid tapioca waste. It is used as medium of Alcaligenes latus. The microbecan grow well in glucose produce from the onggok in concentration of 5 g/l and fermentation period of 30 days. Treatment with biofloculation reduced liquid waste turbidity by 54%, TSS 60%, BOD by 33%, COD by 34% and cyanide content by 41%. Treatment with biofloculation and dilution reduce turbidity by 89%, TSS by 91%, BOD by 62%, COD by 70% and cyanide content by 78%. Finally, combination of biofloculation, aeration and dilution treatment reduce turbidity by 93%, TSS by 95%, BOD by 71%, COD by 74% and cyanide content by 35%.Key words: biofloculation, solid and liquid waste tapioca, Alcaligenes latus
PERSEPSI MASYARAKAT TERHADAP PEMILAHAN SAMPAH (Studi Masyarakat Jakarta, Tangerang, Bekasi, Depok) Lestario Widodo
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1921

Abstract

Act No. 18 of 2008 on Waste Management mandate that the community or household is the beginning of the stage of waste management processes, which make waste separation. Up to know solid waste management in urban area is still a complex problem, either from social, management, or technology aspects. The other problem of solid waste management is due to the people behaviour, which is mostly still unaware. Community respondents do not wish to waste segregation and argued that the waste separation should be done by the government. Seen thatthe awareness for change in how to manage the waste is still low. Local governments still need to continue to disseminate the Act No. 18 of 2008 on Waste Management and provide motivation to the community or households that are willing to segregation waste at the source.Keywords : waste, waste separation, community perception of waste
APLIKASI PEMANFAATAN GAMBUT UNTUK PENGEMBANGAN ZONA PRODUKTIF DI BANTARAN SUNGAI SIAK E. Hanggari Sittadewi
Jurnal Rekayasa Lingkungan Vol. 6 No. 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i1.1922

Abstract

The productive zone in Siak river’s corridor can utilized to increase the social economic after due consideration of conservation aspect. Land of that zone can be developed for production of horticulture or plantation. Choosing peat compost (an organic fertilizer) to improve soil quality in the productive zone of Siak river’s corridor is a good practice due to peat function to support plant growth both qualitatively and quantitatively. In addition the usage also decrease agriculturalbase pollution. This paper describe experimentation result the peat organic fertilization to develop productive zone in the Siak river’s corridor. The use of peat organic fertilizaton in the productive zone of Siak river’s corridor, have positive growth’s respon for horticulture (chilli, pakcoy, terong belanda, cucumber), no nutrient deficiencies and have good yield.Key words : productive zone in Siak river’s corridor, peat compost.
JURNAL REKAYASA LINGKUNGAN LINGKUNGAN, JURNAL REKAYASA
Jurnal Rekayasa Lingkungan Vol. 13 No. 1 (2020): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v13i1.4286

Abstract

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