Prediction of domestic wastewater discharge volume in China

2013 ◽  
Author(s):  
Lei Li ◽  
Xue Liu ◽  
Xiaohui Huang
Keyword(s):  
Domestic Wastewater ◽  
Wastewater Discharge ◽  
Discharge Volume

scholarly journals PENGOLAHAN LIMBAH DOMESTIK RUMAH MAKAN DENGAN PROSES MOVING BED BIOFILM REACTOR (MBBR)

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Aulia Ulfah Farahdiba ◽  
Yayok Suryo Purnomo ◽  
Satria Nugraha Sakti ◽  
Muhammad Firdaus Kamal
Keyword(s):  
Domestic Wastewater ◽  
Biofilm Reactor ◽  
Water Tank ◽  
Wastewater Discharge ◽  
Moving Bed Biofilm Reactor ◽  
Domestic Waste ◽  
Moving Bed ◽  
Study Results ◽  
The Media ◽  
Media Volume

Semakin banyaknya usaha rumah makan, maka air limbah yang dihasilkan akan bertambah dan akan menjadi suatu permasalahan. Pada proses pengolahan limbah khususnya yang mengandung senyawa organik, salah satu teknologi yang digunakan adalah dengan menggunakan proses Moving Bed Bioflm Reactor (MBBR). Pada prinsipnya, MBBR merupakan proses lumpur aktif yang ditingkatkan dengan menambahkan media (carrier) ke dalam reaktor aerasi. Penelitian ini bertujuan menganalisis penurunan zat organik COD dan TSS dengan menggunakan proses MBBR pada limbah domestik rumah makan. Pada penelitian ini media yang digunakan adalah media kaldness 1 (K1) dengan variasi volume media yaitu tanpa media, 15%, 30%, 45%, dan 60%, serta variasi debit aliran air limbah yang akan masuk ke dalam reaktor MBBR sebesar 15 ml/menit, 30 ml/menit, 45 ml/menit, 60 ml/menit, dan 75 ml/menit. Hasil penelitian ini menunjukan bahwa kemampuan penyisihan beban pencemar COD dari limbah air domestik rumah makan oleh reaktor MBBR dengan volume media 60% dan debit 15 ml/menit sangat efektif. Reaktor ini mampu menurunkan nilai COD hingga 97,73% dan untuk TSS hanya sebesar 63,04% karena pada penelitian ini tidak menggunakan bak pengendap akhir sehingga nilai penyisihan TSS tidak terlalu besar.  Kata kunci:  COD, kaldness 1, moving bed bioflm reactor, TSS The more business restaurant, wastewater will be produced. In the processing of wastewater which contains an organic compound the most technology that is used is microorganisms or biological process by using Moving Bed Biofilm Reactor (MBBR). In principle, MBBR is a process of activated sludge is improved by adding carrier into aeration reactor. This study aims to analyze the decrease in organic matter COD and TSS by using the MBBR process in restaurant domestic wastewater. The media that is used in this study is Kaldnes 1 (K1) with variation media volume that is without media, 15%, 30%, 45%, and 60%, and then the flow variation of wastewater discharge that will enter into MBBR reactor 75 ml/minute, 60 ml/minute, 45 ml/minute, 30 ml/minute, and 15 ml/minute. The results of this study results that the ability to set aside COD waste from restaurant domestic waste by MBBR with media volume 60% with 15 ml/minute debit more effective. This reactor able to increase COD till 97,73% and for TSS just 63,04% in this study do not use water tank so the TSS value is not too big. Keywords: COD, kaldness 1, moving bed bioflm reactor, TSS

scholarly journals Organic Removal Treatment Using Microbubble Generator (MBG) in Eutrophic Disorder Condition

2021 ◽  
pp. 97-104
Author(s):  
Tri Yulianti ◽  
Sri Puji Saraswati ◽  
Johan Syafri Mahathir Ahmad ◽  
Wiratni Budhijanto
Keyword(s):  
Standard Deviation ◽  
Domestic Wastewater ◽  
Wastewater Discharge ◽  
Quality Of Water ◽  
Retention Basin ◽  
Do Concentration ◽  
Aeration Performance ◽  
Precise Assessment ◽  
Small Tributary

The Techno Park basin, built as an extension of a small tributary of the Code River primarily acts as a retention basin for runoff during the rainy season. It improves the quality of water that has been degraded by domestic wastewater discharge from the surrounding community. Therefore, this study aims to assess the extent to which water quality of the basin can be improved with aeration technology. The aeration technology is a Microbubble Generator (MBG) built using a 100 Watts submersible pump with three horizontal nozzles at a depth of 40 cm from the water surface. Furthermore, the profiles of dissolved oxygen (DO) concentration were measured at the basin’s inlet and outlet, as well as the depths of 1 m below surface water and the bottom of the basin. Diurnal DO was measured to investigate the causes of supersaturation. The aeration performance was also determined from the COD parameters at the inlet and outlet. Discharge measurements were then conducted on the tributary/drainage channel to the inlet basin. The result showed that the DO supersaturation concentration has been attributed to the contribution of photosynthesis from phytoplankton such as algae. Furthermore, no change in DO concentration was observed in a range of 1 m depth from the surface of the water to the bottom (0.3 - 0.14 mg-DO/l). In this eutrophic state, DO increased exponentially during the daytime hours and then decreased during the night. The daily measurement showed an increase in the average DO of 2.31 mg/l (standard deviation of 1.56 mg/l), with average CODinlet fluctuations of 18.79 mg/l (standard deviation of 13.56 mg/l) and average CODoutlet of 14.38 mg/l (standard deviation 2.94 mg/l). Due to additional DO concentration coming from eutrophication during daylight, it was not possible to make a precise assessment of the effectiveness of the MBG aerator.

scholarly journals EVALUASI DAN PERENCANAAN SALURAN DRAINASE DI JALAN SANGGA BUANA II KOTA PALANGKA RAYA

INFO-TEKNIK ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 221
Author(s):  
Agustulusnu Agustulusnu ◽  
I Made Kamiana ◽  
Raden Harya Saputra
Keyword(s):  
Channel Capacity ◽  
Catchment Area ◽  
Domestic Wastewater ◽  
Drainage Channel ◽  
Wastewater Discharge ◽  
Recharge Area ◽  
Drainage Capacity ◽  
Box Culvert ◽  
Survey Approach ◽  
Channel Type

The siltation occurs nearly along the drainage channel at Sangga Buana II Street Palangka Raya. The catchment area for rainfall is increasingly dense with both residence and shop buildings so that the recharge area is also getting decreased. These factors are assumed able to cause a bigger flood. This study aims to evaluate the flood potential in the channel and design the dimensions of the channel required if the drainage discharge consists of design-discharge with a 2-year return period and domestic-wastewater discharge. This study is conducted in 2019 by using a survey approach. The flood potential is analyzed based on the comparison between both the drainage capacity and drainage discharge. The channel capacity is analyzed by the Manning method while the drainage discharge is analyzed by the Rational method. The domestic-wastewater discharge is assumed equally to 80% of the total use of clean water. The result of study showed that the channel capacity is smaller than the drainage discharge, and it occurs almost along the drainage channel of Sangga Buana II Street Palangka Raya. It means that the channel has flood potential so that it needs to be re-designed. The channel is designed with an opened-channel type and squared-shape with 0,65 m width and 0,65 m depth. The discharge direction is divided into two directions. The first direction flows to the drainage channel at Batu Suli Street while the second one flows to the drainage channel at Lawu Street. It is needed to build box culvert in the five locations to ensure that the discharge direction can flow to the drainage channel both at Batu Suli Street and Lawu Street.

scholarly journals FECAL CONTAMINATION AND THE PROPORTION OF HUMAN-ASSOCIATED E. coli ALONG NHUE RIVER, VIET NAM

2018 ◽  
Vol 56 (2C) ◽  
pp. 23-29
Author(s):  
Mai Tanaka
Keyword(s):  
Microbial Contamination ◽  
Domestic Wastewater ◽  
Wastewater Discharge ◽  
Asian Countries ◽  
Rapid Urbanization ◽  
Potential Health ◽  
E Coli ◽  
River Water Samples ◽  
Positive Proportion ◽  
Middle Stream

According to rapid urbanization in Asian countries, the amount of domestic wastewater discharge has been increasing, resulted in water pollution and potential health risk on human. To secure biological safety of rivers, it is critical to understand the sources of contamination. The present study applied the human-associated E.coli genetic marker (H8) to characterize the source of microbial contamination. E. coli concentration and other pollutants indices were investigated at 10 sites along the river: S1 (upstream) – S10 (downstream). For 220 E. coli isolates collected from river water samples, Real-Time PCR was performed with H8. The results showed that organic pollutants peaked at the middle stream, although they were originally low at upstream (S1). The positive proportion of H8 with E. coli peaked at 40.9 % at middle stream (S6), which was significantly higher than S1 (4.5 %) (p = 0.012). This high proportion implied the relative dominance of human-associated E. coli, which were in line with a large inflow of sanitary wastewater in middle stream, indicated by land use along the river. Thus, we successfully demonstrated the usefulness of H8 to track the source of microbial contamination in the river. 

A laboratory assessment of the impact of brewery wastewater discharge on sulfide and methane production in a sewer

2011 ◽  
Vol 64 (8) ◽  
pp. 1614-1619 ◽  
Author(s):  
Gatut Sudarjanto ◽  
Keshab R. Sharma ◽  
Oriol Gutierrez ◽  
Zhiguo Yuan
Keyword(s):  
Production Rate ◽  
Methane Production ◽  
Domestic Wastewater ◽  
Wastewater Discharge ◽  
Brewery Wastewater ◽  
Laboratory Assessment ◽  
Experimental Reactor ◽  
Ch4 Production ◽  
Negative Impacts ◽  
The Impact

The impact of brewery wastewater discharge on sulfide and methane production in a sewer was assessed. Experiments were carried out on laboratory scale sewer reactors consisting of both an experimental and a control reactor. The control reactor was intermittently fed with real fresh sewage while the experimental reactor was fed with a mixture of brewery and domestic wastewater at two different proportions (10 and 25% v/v). 10% v/v discharge of brewery wastewater increased the H2S and CH4 production rates in the sewer reactor by 40% and 30%, respectively. When the brewery wastewater fraction was increased to 25% v/v, the H2S production rate of the experimental reactor decreased to the level of the control reactor. In contrast, the CH4 production rate maintained at a level that was 30% higher than that in the control reactor. These results indicate that the discharge of brewery wastewater into sewers can give negative impacts in relation to odour and corrosion management of the systems and will increase the greenhouse gas emissions from sewers. The study also reveals that the impact of trade waste on the biological reactions in sewers is complex, and requires careful experimental assessment in each case.

Use of silver in mussels as a tracer of domestic wastewater discharge

1988 ◽  
Vol 19 (10) ◽  
pp. 512-520 ◽  
Author(s):  
Michael Martin ◽  
Mark D Stephenson ◽  
Donald R Smith ◽  
Efrain A Gutierrez-Galindo ◽  
Gilberto Flores Munoz
Keyword(s):  
Domestic Wastewater ◽  
Wastewater Discharge

Wastewater release and its impacts on Canadian waters

2011 ◽  
Vol 68 (10) ◽  
pp. 1836-1859 ◽  
Author(s):  
Claire Holeton ◽  
Patricia A. Chambers ◽  
Laura Grace
Keyword(s):  
Wastewater Treatment ◽  
Human Health ◽  
Domestic Wastewater ◽  
Aquatic Organisms ◽  
Control Measures ◽  
Source Control ◽  
Wastewater Discharge ◽  
Untreated Wastewater ◽  
Treatment Facilities

Discharge of sewage to the environment in the form of treated or untreated wastewater can have serious impacts on human health and quality of life and on ecosystem condition. Since a previous review in 1997, upgrades to wastewater treatment facilities, along with improved source control, have produced successes in reducing loadings of certain pollutants (e.g., mercury, polychlorinated biphenyls) to Canadian waters. However, nationally, loads of phosphorus discharged from wastewater treatment facilities have not changed in recent years (2003–2008), and releases of nitrogen have increased slightly. In some locations, wastewater discharges are contributors to bacterial contamination, toxicity from heavy metals and ammonia, and eutrophication, all of which continue to threaten public and environmental health. An increasing number of studies are also demonstrating developmental, reproductive, and behavioural changes in fish and other aquatic organisms from exposure to pharmaceuticals, personal-care products, or other pollutants in domestic wastewater, even after treatment. Minimizing wastewater discharge and mitigating its effects on the environment and human health will be a challenge. It is critical that gains achieved by improved wastewater treatment and other control measures not be reversed by relaxation of efforts or by failure to keep pace with population growth.

scholarly journals Experimental Study on the Treatment of Rural Domestic Wastewater Using the Multi-Soil-Layering System Filled with Sludge-Based Biochar

2021 ◽  
Vol 45 (2) ◽  
pp. 161-165
Author(s):  
Jingrui Wang ◽  
Zechao Zhang ◽  
Ying Guo ◽  
Liyong Zhang ◽  
Junliang Liu
Keyword(s):  
Domestic Wastewater ◽  
Pollutant Removal ◽  
Hebei Province ◽  
Wood Chips ◽  
Wastewater Discharge ◽  
Treatment Efficiency ◽  
Loading Rates ◽  
System A ◽  
Soil Layering ◽  
Better Than

This paper aims to improve the treatment effect of the multi-soil-layering system (MSL) on rural domestic wastewater. For this, sludge-based biochar materials were selected in the experiments to study its impacts on the treatment of rural domestic wastewater using the MSL. The comparative experiments were conducted for the three MSL systems filled with different materials: the sludge-based biochar (a), wood chips (b), and charcoal (c). The results showed that when the sludge-based biochar material was used as a filler, the removal effect of COD, NH4+-N, TN, TP is better than that of wood chips and charcoal, and the removal rates were 80%, 90%, 65% and 92%, respectively, meeting the Grade A standard specified in the Hebei Province Rural Domestic wastewater Discharge Standard (DB13/2171-2015); hydraulic loading rates (HLRs) have a great impact on the removal of pollutants, and the pollutant indicators in the system (a)re affected by the HLRs in different degrees, i.e., NH4+-N>TP>COD>TN from high to low; considering the treatment efficiency and pollutant removal effect, the HLRs should be selected between 800L/(m2·d) and 1200L/(m2·d). It’s concluded finally that the sludge-based biochar material can strengthen the removal effect of the MSL system. This study is of theoretical value for the further research on MSL system and resource utilization of the sludge.

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