scholarly journals The effect of high hydraulic loading rate on the removal efficiency of a quadruple media filter for tertiary wastewater treatment

2016 ◽  
Vol 107 ◽  
pp. 102-112 ◽  
Author(s):  
Philani Ncube ◽  
Marc Pidou ◽  
Tom Stephenson ◽  
Bruce Jefferson ◽  
Peter Jarvis
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Loading Rate ◽  
Hydraulic Loading Rate ◽  
Hydraulic Loading

Influence of Hydraulic Loading Rate on Horizontal Zeolite Wetland Effluent Quality

2012 ◽  
Vol 573-574 ◽  
pp. 659-662
Author(s):  
Hao Wang
Keyword(s):  
Wastewater Treatment ◽  
Loading Rate ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Secondary Effluent ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Hydraulic Loading Rate ◽  
Effluent Quality ◽  
Hydraulic Loading

In Tangshan area, the secondary effluent of wastewater treatment plants was used for this study. Horizontal zeolite wetland was carried out treating it. Hydraulic loading rate was the parameters for analyzing the nitrogen and phosphorus removal efficiency of pollutants from the secondary effluent of wastewater treatment plant. Zeolite constructed wetlands showed different behaviors for nitrogen and phosphorus removals.Under the optimum hydraulic loading rate, the primary pollutions were removed to a large extent.

Technology Assessment of Wastewater Treatment by Soil Infiltration Systems

1990 ◽  
Vol 22 (3-4) ◽  
pp. 83-92 ◽  
Author(s):  
P. D. Jenssen ◽  
R. L. Siegrist
Keyword(s):  
Wastewater Treatment ◽  
Large Scale ◽  
Loading Rate ◽  
Soil Depth ◽  
Water System ◽  
Integrated Approach ◽  
Soil Infiltration ◽  
Hydraulic Loading Rate ◽  
Hydraulic Loading ◽  
Wastewater Treatment Systems

Infiltration of wastewater in buried soil infiltration systems has been promoted as a low cost, effective alternative for treatment and disposal of wastewater flows from commercial developments and small communities. Unlike many mechanical wastewater treatment systems, soil infiltration systems are subject to complex, far-reaching influences related to natural site conditions and the interaction of wastewater with a dynamic soil and ground water system. As a result, design and performance relationships are not always well defined and systems are often implemented based on local tradition and empiricism. Consequently there is a need for improvement of design criteria especially for large subsurface wastewater treatment systems. Successful performance starts with thorough site investigations, where large scale infiltration tests or tracer studies might be needed. The hydraulic loading rate is a principal design parameter. An integrated approach for assessment of the hydraulic loading rate based on soil type and wastewater quality is suggested. In general, trench design should be preferred over beds, but rational criteria for selection of optimal geometry is lacking. Purification performance of subsurface wastewater infiltration systems is generally good. Estimates of purification on the basis of soil grain size, soil depth and loading rate can be given.

scholarly journals EFISIENSI METODE MULTI SOIL LAYERING (MSL) DALAM PENYISIHAN COD DARI LIMBAH CAIR HOTEL (Studi Kasus: Hotel �X� Padang)

Jurnal Dampak ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 98
Author(s):  
Shinta Elystia ◽  
Shinta Indah ◽  
Denny Helard
Keyword(s):  
Removal Efficiency ◽  
Significant Influence ◽  
Organic Material ◽  
Loading Rate ◽  
Liquid Waste ◽  
Cod Removal ◽  
Soil Mixture ◽  
Hydraulic Loading Rate ◽  
Hydraulic Loading ◽  
Soil Layering

ABSTRAKDalam penelitian dilakukan pengolahan limbah cair Hotel yang bersumber dari dapur dan laundri dengan metode Multi Soil Layering (MSL). Tujuan penelitian ini untuk menentukan efisiensi penyisihan COD dan mempelajari pengaruh faktor variasi material organik dalam campuran tanah pada lapisan anaerob dan variasi Hydraulic Loading Rate (HLR) terhadap efisiensi pengolahan limbah cair hotel dengan metode MSL. Dua buah reaktor MSL berdimensi 50 x 15 x 100 cm dengan lapisan batuan yang sama pada kedua reaktor berupa kerikil berukuran 35 mm serta lapisan anaerob berupa campuran tanah dengan arang (reaktor 1) dan campuran tanah dengan serbuk gergaji (reaktor 2) dengan rasio komposisi 2 : 1. Limbah dialirkan pada masing-masing reaktor dengan variasi HLR 500, 750, dan 1.000 l/m2hari. Konsentrasi COD sebelum diolah adalah 132,600201,240 mg/l, setelah diolah dengan MSL konsentrasi berubah menjadi 12,48088,920 mg/l. Secara umum, variasi material organik dalam campuran tanah tidak begitu berpengaruh pada penyisihan COD. Variasi HLR cukup berpengaruh, dimana HLR 500 l/m2hari memberikan efisiensi penyisihan COD yang lebih tinggi. Efisiensi penyisihan COD yang diperoleh pada penelitian ini berturut-turut pada reactor 1 berkisar antara 55 -90 % dan pada reactor 2 berkisar antara 56-89%. Hasil menunjukkan bahwa kedua reaktor mampu menyisihkan COD pada limbah cair hotel.Kata Kunci: COD, limbah cair hotel, multi soil layering (MSL)ABSTRACTResearch COD removal from hotel wastewater stemmed from laundry and kitchen with Multi Soil Layering method (MSL) was conducted. The aim were to observe COD removal efficiency and to study the effect of organic material variation in soil as the anaerob layer as well as the effect of various hydraulic loading rate (HLR). In this research, there were two MSL reactors with dimension of 50 x 15 x 100 cm. Aerob layers of both reactors in the form of gravel 3-5 mm sized while anaerob layers are composed from soil mixed with charcoal (reactor 1) and soil mixed with sawdust (reactor 2) with ratio 2:1. HLR of wastewater for each reactor are 500, 750, and 1.000 l/m2day. Concentration of COD was 132,600-201,240 mg/l. COD concentration successively reduced to 12,480-88,920 mg/l.This result indicated both reactors can cast aside COD and also neutralize hotel liquid waste pH. In general, organic material variation of in soil mixture, that is sawdust and charcoal did not show any significant influence. HLR of 500 l / m2/day allowed the best removal efficiency at each contaminant parameters. As a whole efficiency removal of COD at this research successively at reactor 1 ranged from 55-90%, and 56-89%.Key Words:COD, hotel wastewater, multi soil layering (MSL)

scholarly journals EFISIENSI DAN KAPASITAS PENYERAPAN FLY ASH SEBAGAI PENYISIHAN MINYAK DAN LEMAK DARI LIMBAH CAIR HOTEL DENGAN METODE MULTI SOIL LAYERING (MSL)

Jurnal Dampak ◽  
2013 ◽  
Vol 10 (1) ◽  
pp. 38
Author(s):  
Tivany Edwin ◽  
Shinta Indah ◽  
Denny Helard
Keyword(s):  
Waste Water ◽  
Removal Efficiency ◽  
Organic Material ◽  
Loading Rate ◽  
Quality Standard ◽  
Oil And Grease ◽  
Soil Mixture ◽  
Hydraulic Loading Rate ◽  
Hydraulic Loading ◽  
Soil Layering

ABSTRAKMetode Multi Soil Layering (MSL) diujicobakan untuk menyisihkan minyak dan lemak pada limbah cair hotel yang berasal dari dapur dan laundry. Hasil analisis karakteristik limbah cair tersebut menunjukkan bahwa konsentrasi minyak dan lemak melebihi baku mutu Surat Keputusan Gubernur Sumatera Barat Nomor 26 Tahun 2001 tentang Baku Mutu Limbah Cair Bagi Kegiatan Hotel di Propinsi Sumatera Barat. Pada penelitian ini digunakan 2 buah reaktor berbahan akrilik dengan dimensi 50 x 15 x 100 cm, terdiri dari dua macam lapisan batuan kerikil berdiameter 3-5 mm serta lapisan yang terdiri dari campuran tanah dan material organik. Kedua reaktor dibedakan atas material organik, dimana reaktor 1 terdiri dari campuran tanah andisol dan arang, sedangkan reaktor 2 terdiri dari campuran tanah andisol dengan serbuk gergaji. Limbah cair dialirkan pada Hydraulic Loading Rate (HLR) dengan variasi 500, 750, dan 1.000 l/m2hari. Hasil penelitian menunjukkan bahwa kedua reaktor mampu menyisihkan minyak lemak dengan efisiensi 27,8 -89,5 % pada reaktor 1, serta efisiensi 23,8-62,5% pada reaktor 2. Variasi material organik dalam campuran tanah berpengaruh pada efisiensi penyisihan konsentrasi minyak dan lemak, dimana secara keseluruhan reaktor 1 lebih baik dalam menyisihkan minyak dan lemak dibandingkan reaktor 2. Efisiensi penyisihan minyak lemak didapatkan lebih tinggi pada reaktor 1 dengan pengaliran limbah cair pada HLR 500 l/m2hari. Secara umum MSL dapat menyisihkan minyak dan lemak pada limbah cair hotel.Kata Kunci : MSL, limbah cair hotel, minyak dan lemakABSTRACTMulti soil layering (MSL) method was tested to remove oil and grease in a hotel laundry and kitchen waste water which was exceeded water quality standard on hotel wastewater quality standard issued by West Sumatera Governor Number 26 Year 2001. There were two acrylic reactors utilized in this research with dimension of 50 x 15 x 100 cm. Each reactor aws arranged with layers of 3-5mm diameters gravels and soil and organic materials mixtures, organic material used were different in each reactor. Reactor 1 used charcoal as organic material in soil mixture, while reactor 2 used sawdust. Waste water was set to flow at 500, 750, and 1.000 l/m2day Hydraulic Loading Rate (HLR). The results showed that both reactors were able to remove oil and grease with efficiency range of 22.8,-89.5% by usnig Reactor 1, and 23.8-62.5% by using Reactor 2. The difference in organic material on soil mixture affected the removal efficiency which was higher in Reactor 1. Removal efficiency of oil and grease the highest at HLR of 500 l/m2day compared to other rates. Generally, MSL is able to remove oil and grease from hotel waste water. Keywords: MSL, hotel waste water, oil and grease

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