scholarly journals Influence of land use on total suspended solid and dissolved ion concentrations: Baton Rouge, Louisiana area

2015 ◽  
Vol 367 ◽  
pp. 258-264
Author(s):  
D. Carlson
Keyword(s):  
Land Use ◽  
Baton Rouge ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Water Levels ◽  
Low Flow ◽  
Gravimetric Analysis ◽  
Storm Events ◽  
East Baton Rouge Parish

Abstract. Past studies in the Baton Rouge, Louisiana area considered streamwater quality during storm events but ignored water quality during low flow periods. This study includes determination of streamwater quality during low flow time periods for none watersheds in East Baton Rouge Parish, Louisiana. These samples were collected during dry-low flow periods as indicated by water levels at USGS stream gauging sites for each stream. Chemical analysis for ions was completed using colorimeters and gravimetric analysis for total dissolved solids (TDS) and total suspended solids (TSS). Land use appears to impact concentrations of ions, TDS and TSS in a variety of ways during periods of low flow. The two most rural watersheds, which are mainly underdeveloped, have higher concentrations of Fe and Mn. By contrast the three most urban watersheds, that are mainly commercial, industrial or residential, have higher concentrations of Si, SO4 and TDS.

scholarly journals Distribusi Material Padatan Tersuspensi di Muara Sungai Sambas, Kalimantan Barat

2018 ◽  
Vol 7 (1) ◽  
pp. 22 ◽  
Author(s):  
Petrus Subardjo ◽  
Agus Anugroho Dwi Suryo ◽  
Ibnu Pratikno ◽  
Gentur Handoyo ◽  
Karlina Putri Diani
Keyword(s):  
Data Processing ◽  
River Flow ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Gravimetric Analysis ◽  
West Kalimantan ◽  
Lack Of Information ◽  
Suspended Matter Concentration ◽  
Direction Of Movement

Muara Sungai Sambas merupakan gerbang bagi kapal-kapal yang akan melakukan aktivitas bongkar muat hasil tangkapan ikan di PPN Pemangkat. Besarnya konsentrasi material padatan tersuspensi berkaitan dengan tingkat sedimentasi di muara Sungai Sambas yang dapat menyebabkan pendangkalan sehingga aliran sungai ke laut terhambat dan alur pelayaran terganggu. Tujuan penelitian ini adalah untuk mengetahui konsentrasi dan pola sebaran material padatan tersuspensi di muara Sungai Sambas Provinsi Kalimantan Barat. Metode yang digunakan dalam penelitian ini adalah metode studi kasus. Analisis material padatan tersuspensi menggunakan metode Gravimetri. Data utama yang digunakan dalam penelitian ini meliputi data material padatan tersuspensi, arus,  dan pasang surut serta data pendukung berupa peta batimetri, dan peta RBI. Hasil penelitian menunjukkan bahwa konsentrasi material padatan tersuspensi terbesar berada di muara sungai dan semakin mengecil kearah laut lepas dengan konsentrasi material padatan tersuspensi saat pasang berkisar antara 67-600 mg/l serta konsentrasi material padatan tersuspensi saat surut berkisar antara 11-321 mg/l. Jenis arus yang mendominasi di muara Sungai Sambas adalah arus pasang surut. Tipe pasang surut yaitu campuran condong ke harian ganda. Kurangnya informasi mengenai arah pergerakan dan besaran konsentrasi material padatan tersuspensi di muara Sungai Sambas menjadikan penelitian untuk mengetahui konsentrasi dan pola sebaran material padatan tersuspensi di perairan tersebut diperlukan. Sambas Estuaries is the entrance for every fisherman boats which will do loading and unloading activity for their fishing at PPN Pemangkat. The amount of total suspended matter concentration is related to the sedimentation at the Sambas estuaries which can cause sedimentation so the river flow hampered and the shipping line disrupted. The purpose of this research is to know the concentration and the distribution of total suspended solid at Sambas Estuaries, West Kalimantan. The method which is used in this research is case study method. Data processing is using gravimetric analysis. The main data used in this research are data of total suspended solid, current, tidal and supporting data such as bathymetri map, RBI map. Based on data processing, known that the highest value of total suspended solid was at estuary and decreased toward the sea with the conscentration at tides ranged between 67-600 mg/l whereas concentration at low tide ranged between 11-321 mg/l. The type tidal which is belong mixed dominant semidiurnal type. Lack of information on the direction of movement and the concentration of total suspended solid at Sambas Estuaries makes research to find out the concentration and distribution of total suspended solid is held at the waters. 

Achieving Flood Reduction with Natural Water Retention Measures in Agricultural Catchments in Ireland 

2021 ◽  
Author(s):  
Pia Laue ◽  
Paul Quinn ◽  
Mary Bourke ◽  
Darragh Murphy ◽  
Mark Wilkinson ◽  
...  
Keyword(s):  
Land Use ◽  
Natural Water ◽  
Water Retention ◽  
Water Storage ◽  
Sediment Traps ◽  
Water Levels ◽  
Storm Events ◽  
Peak Reduction ◽  
Flood Water ◽  
The Impact

<p>In recent decades, land-use and climate change have dramatically altered catchment runoff rates. For example, agriculture intensification has led to increased flood risks by decreasing  soil permeability and reducing channel-floodplain connectivity. Natural Water Retention Measures (NWRM) is an approach that has been adopted European-wide for the attenuation of peak floods and the provision of wider ecosystem services. A reduction in peak flow is achieved by increasing water storage potential in the landscape and by modifying natural flow pathways. In agricultural areas (~70% of Irish land use),  runoff attenuation features such as offline ponds, earthen bunds, sediment traps and leaky dams are frequently deployed natural retention measures.</p><p>Despite the growing evidence across Europe of their efficacy for flood peak reduction, water quality enhancement and biodiversity on the local scale, NWRM features have not been adopted in Ireland as a flood mitigation approach. In order to build a case that will help address this, this presentation will detail a NWRM demonstrate site in Ballygow, Co. Wexford.  The construction and instrumentation of a network of features developed at the field-scale (~1km<sup>2</sup>) is shown. This site is an intensive pasture, small-hold farm. We aim to quantify the effectiveness of these NWRM features to demonstrate their potential to attenuate flood peaks on agricultural areas using temporary storage, whilst minimising the impact on farming.</p><p>The constructed measures consist of a flood swale that connects the channel to the floodplain during high flows, an earthen bund, an offline pond with a sediment trap, that can retain the water from the channel and contributing field slopes, for <12 hours. On-site video footage and eyewitnesses confirm that the flood water flows along the field without draining back into the stream. At approximately 800m across the field, the water is retained temporarily, permitting water storage and the opportunity for suspended sediment to settle out of the water column. Flood water is returned to the channel via a perched 20 cm diameter pipe in the bund. Four automated water level recorders (In-Situ Rugged Troll 100) continuously monitor water levels in the stream and the offline pond at 5 min intervals. In addition, local rainfall (EML Event Logger) is monitored. These data are used to identify the hydrograph characteristics of several storm events and are used to determine the effectiveness of the NWRM structures for flood attenuation. The quantification of the effectiveness of NWRM features will use the observed time series combined with hydraulic and hydrological modelling. </p><p>The quantitative evidence provided by our findings will contribute to establishing vital evidence for the implementation of local and national NWRM schemes in Ireland.</p>

scholarly journals Evaluation of Annual Sediment Load Production in Kenyir Lake Reservoir, Malaysia

2018 ◽  
Vol 7 (3.14) ◽  
pp. 55
Author(s):  
Mohd Khairul Amri Kamarudin ◽  
Noorjima Abd. Wahab ◽  
Ahmad Fadhli Mamat ◽  
Hafizan Juahir ◽  
Mohd Ekhwan Toriman ◽  
...  
Keyword(s):  
Land Use ◽  
Anthropogenic Activities ◽  
Land Use Changes ◽  
Lake Management ◽  
Total Suspended Solid ◽  
River Basin Management ◽  
Suspended Solid ◽  
Anthropogenic Factors ◽  
Lake Basin ◽  
River Bank

Kenyir Lake’s natural environment experienced significant changes over the past 20 years. Pressure from anthropogenic activities such as deforestation, construction, and sand mining around Sungai Terengganu, tourism, farming and agricultural has creating imbalance between environmental processes and response in Kenyir Lake. The aim of the study is to estimate the production of sediment yield (Muatan Sedimen) (MS) (tonnes/km2/year) in Kenyir Lake Basin. 21 sampling stations were chosen along Kenyir Lake to represent the upstream and downstream. The statistical analysis proved that the correlation and regression relationship between Total Suspended Solid (TSS), MS and area of catchment. MS showed a weak correlation and insignificant relationship of regression caused by the anthropogenic factors and uncertain climate changes. These sedimentation problems due to unsustainable land use changes, river bank erosion problems and active construction activity around the Kenyir Lake Basin. This study suggests the sedimentation management methods including land use settlement, cliff erosion problems, settlement and negotiable of uncontrolled development operations in Kenyir Lake and the integrated of river and lake management methods based on Integrated River Basin Management (IRBM) in Kenyir Lake Basin is recommended.  

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.

scholarly journals STUDI KUALITAS AIR IRIGASI DUMOGA DI KABUPATEN BOLAANG MONGONDOW PROVINSI SULAWESI UTARA

2017 ◽  
Vol 17 (2) ◽  
pp. 126
Author(s):  
Sofia Wantasen ◽  
Joudie. N. Luntungan
Keyword(s):  
Total Suspended Solid ◽  
Suspended Solid ◽  
Laboratory Method ◽  
Sodium Absorption ◽  
Canal Irrigation ◽  
Sodium Absorption Ratio ◽  
Calcium Magnesium ◽  
Total Dissolved Solid ◽  
Sar Analysis

Water Irrigation a very important and is one key to the success of the increased production of rice plants in the paddy field.  The aim of this study was to assess the water quality Irrigation Dumoga at Kabupaten Bolaang Mongondow Province Sulawesi Utara. Data collected by observation of agriculture activity and determination of sampling by using composite sampling method at canal Irrigation Dumoga. Measurement in situ pH, and temperatur.  Analysis concentration total dissolved solid (TDS), total suspended solid (TSS), conductivity (DHL), nitrate and phosphate, sodium, calcium, magnesium in the Laboratory.  Method data analysis are Graphic Method and to compare with standart Goverment PP. No. 82/2001 Class IV, and Sodium Absorption Ratio (SAR) Analysis.   The results showed that temperatur at canal Irrigation Motabang 29,3 C, pH 7,12, value of the total dissolved solid (TDS) 127 mg/l, total suspended solid (TSS) 7 mg/l, conductivity (DHL) 182 µS/cm, nitrate 0,040 mg/l, phosphate 0,076 mg/l  mg/l eligible accordance with the standard PP No. 82/2001 Kelas IV.  Natrium concentration 6,38 mg/l, kalsium 0,76 mg/l, magnesium 0,27 mg/l.

scholarly journals Zmienność przepływów niżówkowych w wybranych zlewniach pogórskich i beskidzkich w latach 1988‑2017 = Variability of low flow in Polish Carpathians (foothills and Beskidy Mountains) catchments in the period 1988‑2017

2021 ◽  
Vol 93 (1) ◽  
pp. 5-25
Author(s):  
Witold Bochenek ◽  
Małgorzata Kijowska-Strugała
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Arable Land ◽  
Low Flow ◽  
Soil Permeability ◽  
Low Flows ◽  
Polish Carpathians ◽  
Continental Climate

Water flow in the Polish Carpathians was exemplified by long-term (1988‑2017) analysis of two foothill catchments (of the Skawinka and Stobnica) and two catchments in the Beskidy Mountains (of the Soła and Osława). The work allowed for the determination of the duration of low flows and outflow deficits in relation to changes in thermal and precipitation conditions, as well as land use and land cover. In the selected catchments, the 30-year period brought a decrease in the area of arable land and an increase in the area of grassland and forest. In addition built-up areas increased by 495% between 1990 and 2018. A greater susceptibility to the occurrence of total drought was noted for the Beskidy Mountains catchments, in which the duration of low flows and outflow deficit was greater than in the foothill catchments. At the same time, the mountain catchments proved less susceptible to the emergence of deep drought, on account of their higher levels of forest cover and levels of soil permeability. In regional terms, the durations of low flows and outflow deficits were greater in the catchments located in the eastern part of the Carpathians (those of the Stobnica and Osława), in line with this area’s intensified features of a continental climate.

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.

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