Mobilising fine sediment in a highly regulated upland snowmelt river using hydrological scaled experimental floods

2017 ◽  
Vol 68 (1) ◽  
pp. 146 ◽  
Author(s):  
Daniel Coleman ◽  
Simon Williams
Keyword(s):  
Discharge Rate ◽  
Total Suspended Solid ◽  
Environmental Water ◽  
Suspended Solid ◽  
Fine Sediment ◽  
Peak Discharge ◽  
Water Diversion ◽  
Large Reservoir ◽  
Fine Sediments ◽  
Habitat Recovery

Significant water diversion, flow variability, and the lack of high flow events can result in altered channel surfaces and morphology through the accumulation of fine sediments within the riverbed. Mitigation of this issue using environmental water often involves single large annual flushing floods as peak discharge is often regarded as the critical hydrological metric for river habitat recovery. We assess the performance of a hydrological scaled flow strategy of five intra-annual experimental floods to mobilise fine sediment below a large reservoir in the Snowy River, Australia. Suspended sediment was measured using a high frequency sampling regime; before, during and post-flood along a longitudinal gradient of 2.2, 24 and 92km. Substantial sediment loads and high peak total suspended solid (TSS) concentrations were produced by the five experimental floods. The first (61.7m3s–1) and fourth (largest at 148.5m3s–1) experimental floods were by far the most effective, producing more than 70% of the total sediment load at each site. The effectiveness of each experimental flood was related to the peak discharge rate, time since flood, and the magnitude increase from the previous event. This study illustrates how a hydrological scaled flood regime can produce effective fine sediment mobilisation within the channel of a highly regulated lotic system.

Comparison of Analytical Methods Used to Determine Metal Concentrations in Environmental Water Samples

1992 ◽  
Vol 75 (6) ◽  
pp. 999-1005 ◽  
Author(s):  
Andy Davis ◽  
Roger Olsen
Keyword(s):  
Water Samples ◽  
Environmental Protection Agency ◽  
Mine Drainage ◽  
Total Suspended Solid ◽  
Environmental Water ◽  
Suspended Solid ◽  
Metal Concentrations ◽  
Wide Range ◽  
Contract Laboratory ◽  
Comparison Of Analytical Methods

Abstract Al, Cd, Cu, Fe, Pb, Mn, and Zn were determined in water samples collected from Clear Creek and North Clear Creek, CO, that had been impacted by acid mine drainage. These samples contained a wide range of total suspended solid concentrations. The samples were prepared and digested by dissolved, acid-soluble, total recoverable, U.S. Environmental Protection Agency (EPA total), and Contract Laboratory Program (CLP) total procedures. The CLP method resulted in the highest reported metal concentrations for 67% of the analyses (primarily Al, Cd, Cu, and Fe), the EPA total method for 11 % of the analyses (mainly Mn and Zn), and the acid-soluble method for 9% of the analyses. For the remainder (13%), 2 or more methods resulted in similar metal concentrations. The same analyses using the Three Kids Mine standard reference material demonstrated that the EPA total and total recoverable methods underestimate the maximum metal concentrations in sediment-bearing water samples. In addition, use of acid-soluble or total methods is inappropriate to determine compliance with aquatic water quality standards that were originally promulgated on the basis of dissolved concentrations

scholarly journals Comparison of Time Resolved Optical Turbidity Measurements for Water Monitoring to Standard Real-Time Techniques

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3136
Author(s):  
Anne Pallarès ◽  
Philippe Schmitt ◽  
Wilfried Uhring
Keyword(s):  
Total Suspended Solid ◽  
Environmental Water ◽  
Suspended Solid ◽  
Water Monitoring ◽  
Wheat Starch ◽  
Storm Events ◽  
Time Resolved ◽  
Acoustic Backscattering ◽  
Water Suspensions ◽  
Optical Turbidity

Environmental water monitoring requires the estimation of the suspended solids load. In this paper, we compare the concentration range accessible through three different techniques: optical turbidity, acoustic backscattering and the newly in-lab developed time resolved optical turbidity. We focus on their comparison on measurements made in the laboratory on water suspensions of known particles and concentrations. We used laboratory grade kieselguhr, wheat starch and kaolin as suspended solid surrogates. The explored concentration domains are the ones, for the total suspended solid load, commonly encountered in wastewater and rivers in standard (less than 1 g/L to a few g/L) or extreme conditions such as floods or storm events (up to several dozen g/L). Regarding the operable concentration domain, the time resolved optical turbidity shows a clear advantage upon the other methods, whatever the kind of particle is.

Efektivitas Biokoagulan Cangkang Telur Ayam Ras dan Kulit Pisang Kepok (Musa Balbisiana ABB) dalam Menurunkan Turbiditas, TDS, dan TSS dari Limbah Cair Industri Farmasi

al-Kimiya ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 47-54
Author(s):  
Hesty Nuur Hanifah ◽  
Ginayanti Hadisoebroto ◽  
Turyati Turyati ◽  
Ineu Sintia Anggraeni
Keyword(s):  
Total Suspended Solid ◽  
Suspended Solid ◽  
Ph Optimum ◽  
Musa Balbisiana

Koagulasi merupakan tahap awal dalam proses pengolahan limbah cair. Salah satu industri yang berpotensi untuk menimbulkan pencemaran air bila limbah cairnya tidak dikelola dengan baik adalah industri farmasi. Cangkang telur ayam ras dan kulit pisang kepok merupakan limbah padat yang belum termanfaatkan, padahal kedua bahan tersebut mengandung zat-zat yang bisa membantu dalam proses koagulasi. Oleh karena itu, peneliti tertarik untuk mengembangkan biokoagulan dari cangkang telur ayam ras dan kulit pisang kepok. Penelitian ini bertujuan untuk mengetahui efektivitas dari cangkang telur ayam ras dan kulit pisang kepok sebagai biokoagulan dalam menurunkan nilai turbiditas, TDS (Total Disolved Solid) dan TSS (Total Suspended Solid) dari limbah cair industri farmasi. Alat yang digunakan dalam penelitian ini adalah jartest. Sampel air limbah yang digunakan dalam percobaan ini yaitu sampel air limbah industri farmasi dari PT Sinkona Indonesia Lestari. Berdasarkan hasil penelitian  menunjukkan bahwa biokoagulan cangkang telur ayam mempunyai dosis optimum yaitu 50 g/500 mL dan pada pH optimum 8 terjadi penurunan turbiditas sebesar 81,18%, TDS sebesar 24,3% dan TSS sebesar 82,05%. Sedangkan  biokoagulan kulit pisang kepok mempunyai dosis optimum 5 g/500 ml dan pada pH optimum 2 terjadi penurunan  turbiditas sebesar   94,9%, TDS 51,3% dan TSS  83,2%. Dari data tersebut bisa disimpulkan bahwa cangkang telur ayam ras dan kulit pisang kepok bisa dimanfaatkan sebagai biokoagulan untuk pengolahan limbah cair dari industri farmasi.

Characteristics of sludge reduction in an integrated pretreatment and aerobic digestion process

2006 ◽  
Vol 53 (7) ◽  
pp. 235-242 ◽  
Author(s):  
S. Hwang ◽  
H. Jang ◽  
M. Lee ◽  
J. Song ◽  
S. Kim
Keyword(s):  
Total Suspended Solid ◽  
Suspended Solid ◽  
Reduction Ratio ◽  
Effective Dosage ◽  
Ozone Treatment ◽  
Sludge Reduction ◽  
Aerobic Digestion ◽  
Cake Volume ◽  
Sludge Cake ◽  
Feasible Alternative

In this study, integrated pretreatments and aerobic digestion processes were investigated in order to provide a feasible alternative that can achieve effective sludge reduction. An ozone treatment in the presence of ionic manganese, a catalyst, increased the sludge reduction ratio three times higher than that of a single ozonation, presumably due to an increase in OH radical production. The ozone treatment yielded the effective sludge reduction ratio with an increasing ozone dosage, and an effective dosage of the catalyst was found to be 4 mg-Mn/g-TS. When a mechanical pretreatment and an ozone/catalyst were applied in a series, the integrated process, even at a half mechanical intensity and a half level of ozone dosage, showed higher and faster sludge reduction than each single process did. In addition, the integrated pretreatment process showed the highest dewaterability of the treated sludges. A ratio of sludge cake generation, which was newly introduced to quantify overall performance of sludge treatment processes, showed that the integrated pretreatment followed by the aerobic digestion yielded approximately a half of the sludge cake volume compared to the single aerobic digestion. Therefore, the integrated pretreatment can be a feasible method for the effective reduction of total suspended solid and the final volume.

Biodegradation Potential of Abattoir Wastewater Microbiota in Nigeria

2020 ◽  
Vol 15 (3) ◽  
pp. 70-77
Author(s):  
J.D Bala ◽  
F. A Kuta ◽  
N.U Adabara ◽  
O.P Abioye ◽  
H.S Auta ◽  
...  
Keyword(s):  
Physicochemical Parameters ◽  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Sole Source ◽  
Suspended Solid ◽  
Viable Count ◽  
Total Viable Count ◽  
Slaughter House ◽  
Abattoir Wastewater ◽  
Total Dissolved Solid

Water used for washing carcasses of slaughtered animals and slaughter house is referred to as abattoir wastewater. This study was designed to investigate the microorganisms associated with abattoir wastewater and to establish the biodegradation potential of abattoir wastewater microbiota. Isolation of the microbes was carried out using pour plate technique. The total viable count for the microbes’ ranges from 2.5×104 - 4.6×105 cfu/mL. Results revealed that all the physicochemical parameters exceeded the permissible limits (total dissolved solid (TDS) 1748mg/L, total suspended solid (TSS) 176mg/L, biochemical oxygen demand (BOD5) 91 mg/L and chemical oxygen demand (COD) 227 mg/L). Microorganisms isolated include Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus subtilis, Bacillus anthracis, Aspergillus niger, A. flavus, Mucor sp, Trichophyton quickeanum and Penicillium sp. Some of the microbes were observed to have biodegradation potential by their ability to grow on mineral salt media (MSM) incorporated with starch, cellulose, crude oil, kerosene and diesel as the sole source of carbon and energy. This study suggests that abattoir wastewater harbors microorganisms that could be hazardous to public health when discharged into the environment untreated hence the need for strict monitoring. These microbes isolated could be employed as agent of bioremediation of wastewaters. Key words: Abattoir; Biodegredation; Isolation; Microbiota; Wastewater

Inovasi Pengolahan Limbah Cair Batik dengan IPAL Ekonomis di Desa Maos Kidul Cilacap

2021 ◽  
Vol 3 (2) ◽  
pp. 36-42
Author(s):  
Theresia Evila Purwanti Sri Rahayu ◽  
Rosita Dwityaningsih ◽  
Murni Handayani ◽  
Khoeruddin Witriansyah ◽  
Ayu Pramita
Keyword(s):  
Wastewater Treatment ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Business Owners ◽  
Solid Particles ◽  
Hazardous Substances ◽  
Pollutant Concentrations ◽  
Service Project ◽  
Hazardous Metal ◽  
Dark Blue

Wastewater resulted from the batik dying process is known for its environmentally hazardous substances including hazardous natural and synthetic organic matter, suspended particles, and hazardous metal. But in the micro and medium scale batik textile business, wastewater treatment is mostly not carried because it does not give benefit for the owner. Economical wastewater treatment constructions can be an alternative for the business owner for their free operational cost. Batik wastewater treatment ought to be carried out to meet government standards but most importantly to decrease hazardous pollutant’s concentrations so it does not harm the environment. This society service project aims to provide alternatively economical wastewater treatment for batik business owners by applying simples and cheapest yet effective treatment methods to reduce pollutant concentrations in wastewater. Methods applied in this project including sedimentation, filtration, and landfill-bioremediation. The laboratorium analysis result shows that sedimentation and filtration are significantly reduced total suspended solid particles in wastewater from 2450 to 100 mg/L in line with wastewater decoloring from dark blue to clear yellow.

scholarly journals Phytoplankton community structure and it’s relationships with water quality in Bangka Island, Indonesia

2021 ◽  
Vol 26 (1) ◽  
pp. 37-44
Author(s):  
Muh Yusuf ◽  
Robin Robin ◽  
Wahyu Adi ◽  
Mu’alimah Hudatwi ◽  
Widianingsih Widianingsih ◽  
...  
Keyword(s):  
Water Quality ◽  
Phytoplankton Community ◽  
Environmental Changes ◽  
Total Suspended Solid ◽  
Mining Area ◽  
Suspended Solid ◽  
Test Analysis ◽  
Mining Site ◽  
Average Value ◽  
Primary Producer

Phytoplankton plays an important role in primary productivity in marine environment. Various environmental changes in coastal area will impact the water quality and their phytoplankton compositions. The purpose of this study is to examine the abundance of phytoplankton from two different sites, i.e Tanah Merah (close to mining site) and Semujur Island (away from mining site) in Bangka Island. Phytoplankton and water sample were collected on June- August 2018. Water quality was measured using water quality checker, whereas the phytoplankton was identified under the microscope with a magnification of 100x. Non-parametric Kruskal test and T-test analysis was performed to determine the abundance, diversity, uniform, and dominance of phytoplankton between Sites, respectively. Statistical analyses showed the abundance of phytoplankton at Semujur Island was significantly higher than that at Tanah Merah (p = 0.003). In additions the diversity, uniform, and dominance were also significantly different between sites (all p <0.05). In Semujur Island, Diatoms (Thalassiothrix, Chaetoceros and Thalassionema) were more dominants than the Dinophyceae group. However, in Tanah Merah, the genera Ceratium belong to class Dinophyceae was more dominant than the class Bacillariophyceae. These results performed that the phytoplankton in Tanah Merah and Semujur Island was affected by environment, in this case the mining area. The water quality in Semujur Island (non-mining Area) might have good quality than in Tanah Merah (mining area). The average value of turbidity and Total Suspended Solid in Tanah Merah Waters causes low abundance of phytoplankton. It can be concluded that tin mining can disrupt the abundance and composition of phytoplankton as a primary producer of waters.

scholarly journals Analysis of total suspended solid content based on rain characteristics in the Ciliwung River basin

2020 ◽  
Vol 10 (3) ◽  
pp. 352-363
Author(s):  
Sulistyo Ariebowo Djajusman ◽  
Hadi Susilo Arifin ◽  
Etty Riani
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
Correlation Coefficient ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Solid Content ◽  
Rainfall Characteristics ◽  
Middle Stream ◽  
The Relationship

Total suspended solid (TSS) is one of the parameters that determines whether or not a body of water is polluted. One factor that influences the amount of TSS content is the characteristic of rainfall in an area. Purpose of this study was to determine the relationship between the effect of rainfall characteristics and TSS content in Ciliwung River. Multiple regression analysis was used for analytical method.  Results of multiple regression analysis showed that the correlation coefficient (adjusted R2) for the factors of rainfall, discharge and sediment show a low correlation to changes the content of TSS in Ciliwung River. The value of each correlation coefficient in the upstream, middle, and downstream of Ciliwung River are 0.21, 0.31, and 0.09 respectively. According to the F test, rainfall, discharge and sediment  were significantly affect TSS content in the upstream and middle stream.  Based on t test, it is known that only rainfall affect TSS content in the upstream and midlle stream.

scholarly journals EFFECTS OF ANTHROPOGENIC ACTIVITY ON STREAM WATER QUALITY IN LANGSA, ACEH

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Helmy Akbar ◽  
Iwan Suyatna ◽  
Jailani Jailani ◽  
Singgih Afifa Putra ◽  
Fauziah Azmi
Keyword(s):  
Water Quality ◽  
Stream Water ◽  
Surface Mining ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Low Ph ◽  
Anthropogenic Activity ◽  
Stream Water Quality ◽  
Type C

Increased human activity towards the water bodies will change the condition of water quality. Case study in Langsa, Aceh, It was found that an increase in Some physical parameter (TSS) that exceeds the value determined in PP 82 of 2001 (Indonesian government standard). The high value of TSS in Station 2 and Station 3 indicates that the sediment loading to the water body is high, especially in Station 3, where the TSS concentrations far exceed the standard. Activity of type C surface mining materials tends to affect the brightness, turbidity, depth and TSS. Water conditions with low pH were also found in this study. In location studied no EPT larvae were found Keyword: Langsa, Water Quality, Stream, Total Suspended Solid, Anthropogenic Activity

scholarly journals ASSESSMENT OF GROUNDWATER QUALITY FROM INDUSTRIAL AND RESIDENTIAL AREAS OF SANGO OTA, NIGERIA

2021 ◽  
Vol 46 (2) ◽  
Author(s):  
O.A. Oguntade ◽  
V.I. I Fesiokwu ◽  
O. S. Sule
Keyword(s):  
Electrical Conductivity ◽  
Drinking Water ◽  
Water Samples ◽  
Total Suspended Solid ◽  
Industrial Area ◽  
Suspended Solid ◽  
Residential Area ◽  
Total Hardness ◽  
Residential Areas ◽  
High Concentration

High concentration of contaminants in drinking water can affect human health. This study assessed quality of groundwater at industrial and residential areas of Sango Ota, Ogun State. Water samples were collected in triplicates from 8 wells at industrial and residential areas and analyzed for its physicochemical properties. The pH, electrical conductivity, total dissolved solid (TDS), nitrate, sulphate, total suspended solid (TSS), total hardness (TH), iron, zinc, copper, lead, nickel, chromium and cadmium concentrations in the water samples were determined following American Public Health Association (APHA) procedure. Results showed that pH of 50 % of the wells were lower than minimum limit of 6.5 recommended by WHO. Sulphate, TH and iron in the water were significantly (p < 0.05) higher at residential area than industrial area. Electrical conductivity exhibited significant (p < 0.01) correlation with TDS (r = 0.701**) and NO32- (r = 0.922**) at residential area. At the industrial area however, concentration of salts in water samples was highly associated with SO42- (r = 0.864**) and Cd (r = 0.587**). Across locations of groundwater, iron and lead were above allowable WHO limits in drinking water. Cadmium was also above drinking limit at location T4 of the residential area. Consumers of groundwater in the study area are prone to health related challenges of heavy metal toxicity.

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