scholarly journals Application and actual practice of the fixed bed type anaerobic waste water treatment equipment (ABC system).

1987 ◽  
Vol 16 (7) ◽  
pp. 492-496
Author(s):  
Shinichi DOMOTO ◽  
Hiroaki HIGASHINO
2018 ◽  
Vol 2 (2) ◽  
pp. 84
Author(s):  
Khalimatus Sa’diyah ◽  
Muchamad Syarwani ◽  
S. Sigit Udjiana

Air limbah domestik yang memiliki kadar BOD, COD, TSS, Turbidity dan pH tinggi menjadi salah satu penyebab pencemaran air. Sehingga perlu adanya pengolahan lebih lanjut sebelum dibuang ke sungai atau badan air. Salah satu pengolahan air limbah yang bisa digunakan adalah kombinasi settlement tank dan fixed-bed coloumn up-flow. Alat ini dipilih karena harganya terjangkau, bahan mudah didapat dan peralatannya mudah dioperasikan. Tujuan utama penelitian ini untuk menurunkan kadar turbidity, TSS dan BOD. Penurunan parameter ini dipengaruhi oleh waktu settlement tank, waktu pengontakkan effluent dan tinggi unggun pasir. Hasil penelitian pada settlement tank secara aerob didapatkan persen penurunan turbidity, TSS dan BOD  yang tertinggi pada settlement tank 6 hari dengan nilai 48,21%; 75,27% dan 52,84 %. Pada alat fixed-bed coloumn up-flow secara kontinyu dengan waktu aerasi settlement tank 6 hari didapatkan persen penurunan turbidity yang tertinggi pada tinggi unggun pasir 20 cm sebesar 18,57%, sedangkan  persen penurunan TSS dan BOD yang paling tinggi pada tinggi unggun pasir 30 cm yaitu 41,46% dan 11,23%.Domestic waste water is one of the causes of water pollution. Domestic waste water has high levels of BOD, COD, TSS, Turbidity and pH. Therefore, it need futher processing so that the conditions is safe when discharged in river or lake. One of waste water treatment is combination of settlement tank and fixed-bed coloumn up-flow. This equipment is selected because the price is affordable, materials and equipment can be obtained, and easy to operate. The main purpose of this study is to decrease levels of turbidity, TSS and BOD. Decreased parameters are affected by time of seetlement tank, time of effluent contact and high of sand beds. Result of research on settelement tank aerob obtained highest percentage of turbidity, TSS and BOD decrease in 6 day settlement tank with value 48.21%, 75.27% and 52.84%. In a continuous fixed-bed coloumn up-flow with aeration time,  6-day in settlement tank, obtained the highest percentage of turbidity reduction at 20 cm sand bed height of 18.57%, while the highest percentage of TSS and BOD reduction in sand bed height was 30 cm is 41.46% and 11.23%.


1998 ◽  
Vol 37 (9) ◽  
pp. 167-174 ◽  
Author(s):  
N. Müller

Seven full-scale hybrid systems have been operating in waste water treatment plants in Southern Germany since the early eighties. The aerobic submerged biofilm technology applied is known as Bio-2-Sludge process. The plants have originally been designed for carbon removal and were modified later on to allow nitrogen removal. For this purpose, the age of the operating sludge had to be raised. This was achieved without any addition of reactor volume by installation of submerged biofilm carriers. The use of the submerged, fixed bed devices results in a very efficient sludge, allowing MLSS of up to 11 g/l. Operational results show both a purification improvement of BOD and ammonia and the existence of simultaneous denitrification. Practical experiences of long-term operations are being reported.


Author(s):  
Darma Bakti ◽  
Ridwansyah ◽  
Isman Nuriadi

Community service activities is one of the obligations that must be implemented by lecturer at the university sabagai one aspect of Tri Dharma Perguruan Tinggi. The activity was carried out by a Team of Community Service entitled "The Application of Coconut Waste Processing Technology as Organic Fertilizer and Nata de Coco" is a devotion activity involving two partners, namely Bakti Karya Farmer Group and Mekar Jaya Farmer Group are two groups of farmers who are active in cultivation and coconut cultivation in Desa Asahan Mati, Tanjung Balai Sub-district of Asahan Regency. Problems faced is the low quantity and quality of coconut production caused by the limited information about the culture culture of coconut cultivation, especially aspects of pest control and fertilization. In addition, the presence of coconut straw waste in the form of midrib and leaves and coconut water that is very large to be a problem because it has the potential to cause environmental pollution and become a pest of nests. . In order to solve the problems of both partners, this activity will be conducted in the form of lectures, discussions, practices and introduction of coconut chopping machine in the form of leaf and stem to be used as raw material of organic fertilizer, hybrid coconut seeds and coconut waste water treatment equipment as nata de coco . After the implementation of the dedication activity to the partner community has been able to make organic fertilizer bokashi by utilizing the waste of coconut plants by digging the compost cutting machine that introduced, the practice of hybrid coconut cultivation, and waste water treatment of coconut to nata de coco. The results of these activities can increase hybrid coconut production while maintaining environmental sustainability,


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