scholarly journals Modification of Septic Tank for Sedimentation Optimization in the Public Toilet (Case Study at Wisdom Park UGM)

2021 ◽  
Vol 930 (1) ◽  
pp. 012006
Author(s):  
K Syafira ◽  
J S M Ahmad ◽  
S P Saraswati

Abstract Septic tank with sedimentation and anaerobic processes in the same tank is commonly used as a domestic wastewater treatment technology in individual households and communal systems. Although simple to construct, such a system has some problems, such as effluent not meeting the quality requirement and blocking by trash and suspended solid before the second treatment chamber. This research aims to develop a new septic tank design that is simpler to construct and improve performance. The new design uses HDPE material, which is easier to build and standardized compared to the conventional concrete structure. The performance of the new design was compared to the conventional septic tank. The start-up process was monitored for flowrate, COD, TSS, NH3N, PO4-P parameters and evaluated against effluent standards. The study was conducted at public toilet facilities at Wisdom Park UGM and Sunday Morning Market. Results from the study show that the new design effectively improves effluent quality and overcomes the trash problem.

2018 ◽  
Vol 16 (2) ◽  
pp. 155
Author(s):  
Euis Nurul Hidayah ◽  
Andrysah Djalalembah ◽  
Gina Aprilliana Asmar ◽  
Okik Hendriyanto Cahyonugroho

ABSTRAKPenanganan air limbah domestik Kota Surabaya selama ini dilakukan dengan 2 cara, yakni untuk blackwater dialirkan ke tangki septik dan greywater dialirkan ke drainase tanpa pengolahan. Hal ini menyebabkan peningkatan pencemar pada sungai sebagai air baku. Salah satu teknologi alternatif yang dapat diaplikasikan dengan mudah dan rendah biaya operasional dibanding pengolahan air limbah lainnya adalah constructed wetland dengan menggunakan tanaman Iris pseudoacorus sebagai kombinasi pengolahan biofilter dan proses fitoteknologi. Penelitian ini dilakukan untuk mengetahui efisiensi dari constructed wetland dengan tanaman Iris pseudoacorus untuk mengolah limbah domestik, serta menentukan bagaimana pengaruh dari adanya aerasi dan pengaruh waktu tinggal pada sistem constructed wetland dalam menurunkan bahan organik dan nitrogen pada air limbah. Penelitian ini dilakukan dalam skala uji laboratorium menggunakan reaktor berkapasitas 30 liter. Air limbah dialirkan pada reaktor dengan waktu tinggal 2 hari dan 3 hari, dengan variasi aerasi dan efisiensi pencemar diukur dengan parameter BOD, dan ammonia. Hasil penelitian ini menunjukan bahwa kemampuan penyisihan BOD, dan ammonia dari limbah air domestik oleh reaktor constructed wetland dengan tambahan aerasi dan waktu tinggal selama 4 hari sangat efektif. Reaktor ini mampu menurunkan nilai BOD hingga 96% dan nilai ammonia sebesar 97%.ABSTRACTWastewater domestic in Surabaya City has been treated in two methods, including septic tank for blackwater and directly discharged into drainage system for greywater. This caused an increasing pollutant loading in source water. Constructed wetland with Iris pseudoacorus, one of the alternative natural treatment technology through biofilter and phytotechnology process, could be applied easily and less costly to other treatment. This research was conducted to know the efficiency of constructed wetland with Iris pseudoacorus in domestic wastewater treatment, and to reveal the effect of aeration and detention time in reducing organic and nitrogen content in domestic wastewater. Experiment has been conducted on a laboratory scale of continue aerated reactor and without aeration as control reactor. Detention time (days) 2 and 3 was setup, then sample was taken for BOD and ammonia measurement. The results indicated that constructed wetland with aeration and detention time 4 days had a higher performance to remove BOD up to 96% and ammonia up to 97% than without aeration and less than 4 days process.Keywords: Domestic Wastewater, Constructed Wetland, Phytotechnology, Iris pseudoacorus, Aeration.Sitasi: Hidayah, E. N., Djalalembah, A., Asmar, G.A. dan Cahyonugroho, G.A. (2018). Pengaruh aerasi dalam constructed wetland pada pengolahan air limbah domestik. Jurnal Ilmu Lingkungan, 16(2),155-161, doi:10.14710/jil.16.2.155-161


Author(s):  
Deni Rusmaya ◽  
Evi Afiatun ◽  
Muhammad Al Hadad

Babakan Village has a problem that there is still a lack of facilities for wastewater. This condition can be seen from the access to the toilets of 2436 households; only around 1506 families have access to family/ shared latrines and 625 households that meet technical requirements. For this reason, this plan is useful for increasing access and meeting community needs for domestic wastewater treatment facilities in the study area. This planning stage begins with a survey and sanitation inspection to determine 3 priority areas for handling. Determinants of this priority area use the method of scoring and weighting the risk. The weighting results put sub village 02 with a score of 2.3, sub village 05 with a score of 2.25, and RW 10 with a risk value of 2 as the priority area for planning handlers. Primary data collected will be used as a consideration for determining the technology to be applied. The technology chosen for processing is the communal septic tank for people who do not have treatment. In contrast, for the washing bath, toilet with a biofilter unit for people who do not have wastewater infrastructure.


2012 ◽  
Vol 610-613 ◽  
pp. 1770-1773
Author(s):  
Ying Hua Li ◽  
Hai Bo Li ◽  
Xin Wang ◽  
Tie Heng Sun

Subsurface wastewater infiltration treatment system (SWIS) is a domestic wastewater treatment technology. While the traditional technology has a large floor area, long starting period and low pollutants removal rate. A new biosubstrate that can be applied in SWIS is studied, experiments about its characteristics were performed, and treatment effect was compared. The results show that the biosubstrate has high biological activity, with it, SWIS has shorter starting period, better pollutants removal rate and consequently needs less floor space.


2020 ◽  
Vol 10 (21) ◽  
pp. 7446
Author(s):  
Steen Nielsen ◽  
Alexandros I. Stefanakis

Sludge treatment reed beds (STRBs) are an established sludge treatment technology with multiple environmental and economic advantages in dewatering sludge generated during domestic wastewater treatment. However, little is reported regarding their appropriateness and efficiency for the treatment of sludge produced during industrial wastewater treatment and from water works. These sludge types may have significantly different quality characteristics than typical domestic sludge and may contain constituents that could affect their dewaterability. Therefore, the dewatering of these industrial sludge types is usually tested in small-scale pilot STRBs before the construction of full-scale systems. This paper presents and summarizes the state-of-the-art experience from existing pilot and full-scale STRB systems from various countries and climates treating sludge from various industrial sources, evaluates the suitability and the advantages of this sustainable treatment technology, and proposes the required dimensioning for efficient full-scale STRB operation and performance.


REAKTOR ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 182
Author(s):  
Dian Fatikha Aristiami ◽  
I Nyoman Widiasa

The increase of population leads to an increase of the quantity of domestic wastewater. Activated sludge system is the most cost-efective to treat the domestic wastewater treatment. This study is aimed to evaluate the co-precipitation coagulant effect of FeCl3 on the growth of activated sludge, settling characteristics of the activated sludge, and effluent quality. sludge sedimentation characteristics (settling) as well as on the effluent quality. The activated sludge systems were operated in batch mode and synthetic domestic wastewaters with C:N:P ratio of 100:5:1 were used as feed wastewater. The growth of activated sludge was based on concentration of Mixed Liquor Suspended Solid (MLSS), settling characteristics of activated sludge was based on value of Sludge Volume Index (SVI), and effluent quality was based on turbidity, colour, N-ammonia concentration, and Chemical Oxygen Demand content. Results indicate that inhibition effect of FeCl3 to activated sludge activity was not significant at dosage ≤ 30 mg/L. Good settling characterisic (SVI 70-150 mg/L) was achieved at dosage of 20-30 mg/L. Finally, the best effluent quality, i.e. turbidity (9.4), colour (96), amonia removal (83.6%), and COD removal (72.97%), at dosage of 30 mg/L. Keywords: activated sludge; co-precipitation; domestic wastewater; wastewater treatment Abstrak Peningkatan jumlah penduduk mengakibatkan kenaikan jumlah air limbah domestik. Sistem lumpur aktif merupakan proses yang paling efektif untuk mengolah air limbah domestik. Penelitian ini bertujuan untuk mengevaluasi pengaruh co-precipitation koagulan FeCl3 terhadap pertumbuhan lumpur aktif, karakteristik pengendapan lumpur aktif, dan kualitas efluen. Sistem lumpur aktif dioperasikan secara curah dan umpan air limbah yang digunakan adalah air limbah domestik sintesis dengan rasio C:N:P = 100:5:1. Pertumbuhan lumpur aktif  berdasarkan konsentrasi Mixed Liquor Suspended Solid (MLSS), karakteristik pengendapan lumpur berdasarkan  nilai Sludge Volume Index (SVI), dan kualitas efluen berdasarkan tingkat kekeruhan, warna, kadar N-amonia dan kadar Chemical Oxygen Demand (COD). Hasil penelitian menunjukkan bahwa inhibisi FeCl3 terhadap aktivitas lumpur aktif tidak signifikan pada dosis ≤ 30 mg/L. Karakteristik pengendapan yang baik (SVI 70-150 mg/L) tercapai pada dosis 20-30 mg/L. Kualitas efluen terbaik, yaitu  kekeruhan (9,4),  warna (96), penyisihan amonia (83,6%) dan penyisihan COD (72,97%), pada dosis 30 mg/L. Kata kunci: lumpur aktif; co-precipitation; air limbah domestik; pengolahan air limbah  


2011 ◽  
Vol 347-353 ◽  
pp. 1399-1404
Author(s):  
Jin Hu Yang ◽  
Wei Chen ◽  
Hang Xu ◽  
Lei Zhao

The airlift contact oxidation process is the combination of airlift technology with contact oxidation method. The process was used to treat domestic wastewater, the appropriate operating parameters were determined by experiment, and the operation stability, anti-impact loads and treatment cost of the process were also analyzed. The results show that this process has some advantages of compact layout, small occupancy area and low treatment cost. Under the conditions of air/water ratio of 16.8 and the hydraulic loading of 4.8m3/(m3•d), the average removal rate of COD and NH3-N reaches 80.1% and 58%, respectively. The effluent quality is stable and excellent, and it can be used as municipal miscellaneous water. The height of the media can be reduced due to its internal recycling system.


2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Rudi Nugroho

Nowadays, the domestic wastewater have become a big problem in Indonesia especially in Jakarta. The governor of DKI Jakarta has established new regulation of domestic wastewater standard which can be discharge to the environment. The regulation namely Pergub 122 tahun 2005. To comply the regullation, PT. United Can Co. Ltd. has already built a domestic wastewater treatment using anaerobic-aerobic biofilter. The wastewater treatment has 130m3/day of treatment capacities. During the start-up periods till 3 months running, the compossition of influent and efluent were analysed weekly. The results show that the concentration of parameter of COD, BOD, TSS, Amonia, pH and MBAS in the effluent have bellow the limit noted in the Pergub 122 th 2005.  Keywords:  Domestic Wastewater, Biofilter, Anaerobic, Aerobic


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