scholarly journals DESTRUCTION OF DYES IN WASTES OF TEXTILE PRODUCTS

2021 ◽  
pp. 58-63
Author(s):  
Mariia Madani
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Sodium Chloride ◽  
Water Treatment ◽  
Municipal Sewage ◽  
Organic Substances ◽  
Initial Concentration ◽  
Septic Tanks ◽  
Density Concentration ◽  
The Cost

The results of wastewater treatment of textile enterprises in the electrolyzer with insoluble anodes and separation of electrode spaces with an inert membrane are presented. The influence of time, current density, concentration of sodium chloride, the initial concentration of dyes on the process of electrochemical destruction is determined. The developed technology makes it possible to ensure the effectiveness of the destruction of dyes and organic substances, which is necessary to obtain water quality that meets the standards for discharge into the municipal sewage system and reduce the cost of water treatment due to the lack of reagent facilities, septic tanks and dewatering equipment.

scholarly journals APLIKASI MEMBRANE BIOREACTOR (MBR) UNTUK PROSES DAUR ULANG AIR LIMBAH

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Taty Hernaningsih
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Membrane Bioreactor ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Quality Standards ◽  
Waste Water Treatment Plant ◽  
Recycled Waste

The population is growing rapidly result to increased demand for drinking water while the other side of this situation causes to the increasing amount of wastewater. Waste water treatment plant has been built in several major cities in Indonesia to overcome the problem of pollution.  Wastewater treatment plant only treats wastewater to tackle environmental pollution without being able to overcome the shortage of clean water community. Therefore, to solve the existing problems will be considered any further processing with recycled waste water treatment. One technology that may be developed for this purpose is the system of Membrane Bioreactor (MBR). This has been widely applied as an advanced unit of wastewater treatment and serves as a unit of processing recycled waste water. The MBR system has advantages such as: it only takes a little bit of land, can treat wastewater with discharge varying quality and process wastewater with high pollutant removal efficiency. MBR were investigated using a membrane filter submerged in the reactor. Membrane module is hollow fiber with a form of polymeric membrane materials. Research has been done on wastewater treatment with a combination of conventional WWTP as preliminary and advanced processing unit with MBR since March 4, 2014 until June 2014. The effluent quality  of result research proved that  the treated water quality meets  water quality standards are set with  Permenkes RI N0.416/Menkes/Per/IX/1990, dated 3 September 1990. The nitrification and denitrification also proceed well so that the concentration of nitrite and nitrate meet the quality standards. In addition, the percentage removal of heavy metals (arsenic, cadmium, chromium, selenium, lead) can reach 99%. Keywords: MBR, wastewater reuse, BOD5, COD, HRT dan SRT

Influence of molecular weight distribution of organic substances on the removal efficiency of DBPS in a conventional water treatment plant

2000 ◽  
Vol 41 (10-11) ◽  
pp. 43-49 ◽  
Author(s):  
C-N. Chang ◽  
A. Chao ◽  
F-S. Lee ◽  
F-F. Zing
Keyword(s):  
Water Quality ◽  
Molecular Weight ◽  
Water Treatment ◽  
Weight Distribution ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Quality Parameters ◽  
Organic Substances ◽  
Raw Water ◽  
Unit Operations

The objective of this study is to investigate how the molecular weight distribution of the organic substances affects their treatment efficiencies and the reduction of disinfection by-products (DBPs) in the various unit operations of a full-scale water treatment plant. The results indicate that the membrane with a smaller molecular weight cut-off is more effective for removing the organic substances and its associated water quality parameters from the raw water. For example, using the membrane with a molecular weight cut-off of 0.5 K (500 daltons), the removal efficiency of DOC from the raw water sample can be as high as 88%. Removal efficiencies of other water quality parameters such as UV254 absorbance, THMFP and AOXFP are generally between 65–69%. When undergoing the various unit operations in the conventional water treatment plant, most organic substances are removed in the coagulation process followed by sedimentation.

Study on the Technology for Underground Treatment of XingFu Mine Water

2013 ◽  
Vol 684 ◽  
pp. 222-225
Author(s):  
Jia Ping Wang ◽  
Tao Mei
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Mine Water ◽  
Underground Mine ◽  
Industrial Water ◽  
Settling Pond ◽  
Mine Water Treatment ◽  
The Cost ◽  
Operation Cost

According to the XingFu mine's water quality, put forward a technology for mine water underground treatment. Changing original underground mine water sump into complex settling pond. Estimate the investment and the operation cost of the underground mine water treatment project. The result shows that: the cost of the underground mine water treatment is only 1.1172 yuan per ton, saving about 2 yuan per ton compare with the price of industrial water. This prove that it is feasible and saving for underground mine water treatment in XingFu mine.

A Decentralized Grey Water Treatment and Reuse System in a Residential Area for Landscaping and Environmental Purposes

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
X. C. Wang ◽  
B. B. Cheng ◽  
R. Chen
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Residential Area ◽  
Daily Consumption ◽  
Artificial Lake ◽  
Grey Water ◽  
Pipe System ◽  
Second Stage ◽  
The Cost

A case study was conducted in a residential area in Xi'an, China for grey water treatment and reuse for landscaping and environmental purposes. Through a dual-pipe system, grey water and black water were separately collected from 6 buildings at a flow rate about 100 m3/d. The collected grey water was treated by a hybrid physicochemical process using a fluidized pellet bed separator as the first stage and by ozone enhanced flotation as the second stage. In order to maintain good water quality in the artificial lake, part of the stored water was sent back to the second stage of the treatment facilities for water quality polishing. From the pond, water was also pumped for gardening and other non-potable uses. The average daily consumption (for gardening, surface evaporation and other losses) was about 60 m3/d. The project was proved technically feasible because the treatment system could provide water with good quality to meet the specification of for scenic environment reuse and sustain a beautiful water environment. It was also proved economically feasible because the cost for water reclamation could be well compensated by the cost saved for purchasing fresh water which would be consumed for the same purpose of landscaping and environmental water use. This case study provided a good example of decentralized wastewater treatment and reclamation for landscaping and environmental reuse.

scholarly journals Removal of Amoxicillin from Water by Adsorption on Water Treatment Residues

2020 ◽  
Vol 17 (3(Suppl.)) ◽  
pp. 1071
Author(s):  
Mahmood mahdi Barbooti ◽  
Sarah H. Zahraw
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Contact Time ◽  
Operating Conditions ◽  
Optimum Conditions ◽  
Inorganic Pollutants ◽  
Initial Concentration ◽  
Low Concentrations ◽  
Wide Range ◽  
Mathematical Relationships

The presence of residual antibiotics in water results in the development of antibiotics resistant genes. The available wastewater treatment systems are not capable of removing such antibiotics from sewage. Thus, antibiotics need to be removed before the discharge of wastewater. Adsorption is among the promising techniques for the wastewater treatment to aid the removal of a wide range of organic and inorganic pollutants. The present work is a contribution to the search for an economical method for the removal of low concentrations of amoxicillin (AMX) from water by adsorption on water treatment residue, WTR, taken from a local drinking water facility. The chemical composition and the adsorptive characteristics of the material were first evaluated using energy dispersive spectroscopy, EDS, and sorption of methylene blue, respectively. The porous character of the sorbent was modified by ignition. The application of the WTR for the adsorption of AMX was studied under various operating conditions including sorbent dosage, 2-20 g/L at room temperature; contact time 30-240 min.; and initial concentration range of the antibiotic, 0.00004-0.00012 M. facility. To aid the experimental work, statistical software was employed to design the experiments and evaluation of the results. Graphical and mathematical relationships have been established for the adsorption efficiency with the operating conditions. The adsorption capacity was calculated from the plot of the adsorbed drug against the sorbent content and found to be 19.966 µmol/g WTR. The sorption efficiency depends on the initial concentration and being better at low concentration (0.00004 M) and equilibrium time (within 100 mins.). The optimum conditions of the adsorption are: AMX Concentration, 0.00004 M; Contact time. The optimum conditions of the adsorption are: AMX Concentration, 0.00004 M; Contact time, 90 min., and WTR content of 15.5 g/L to give removal efficiency of 89.2%.

scholarly journals Pengolahan dan Pemanfaatan Limpahan Air Sungai Sahang sebagai Air Bersih Untuk Keperluan Laboratorium Teknik Kimia Jurusan Teknik Kimia Politeknik Negeri Sriwijaya

2020 ◽  
Vol 2 (2) ◽  
pp. 80-88
Author(s):  
Ahmad Bustomi
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
River Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Quality Standards ◽  
Parameter Analysis ◽  
Clean Water ◽  
Organic Substances ◽  
Water Overflow

Clean water is the primary need of living things because water plays an important role in the process of life. The quality of raw water from various sources has different quality and quantity characteristics, which means that not all regions have a clean water supply that can be processed into water suitable for consumption in accordance with clean water standards that meet clean water requirements. Therefore, in processing and utilizing overflow of Sahang River water, the WTP (Water Treatment Plant) system is to remove metals, organic substances and bacteria in accordance with clean water quality standards of the Ministry of Health of the Republic of Indonesia. The stages in the processing and utilization of the Sahang River water overflow are preliminary analysis of samples in the intake, sedimentation and reservoir tanks. Then to ensure the results of processing and utilization of the Sahang river water overflow, we took a comparative sample, namely PDAM Tirta Musi Palembang water. Analysis of physical, chemical and biological parameters. In the analysis test, the physical parameters of clean water include temperature, color, turbidity, dissolved solids (TDS), smell and taste. In the analysis of clean water chemical parameters, including pH, hardness, chloride, organic substances, ammonia, sulfate, nitrite, nitrate, chromium, cadmium, iron, manganese, copper, aluminum, zinc and lead. Meanwhile, the biological parameter analysis test includes the analysis of E-Coli bacteria. The results of the water quality analysis test for WTP (Water Treatment Plant) have been proven to comply with SNI quality standards for clean water with the optimum results obtained in the addition of a coagulant with a concentration of 75 ppm. However, there are parameters that have decreased and increased levels in each type of parameter such as parameters Turbidity (4.27 NTU), pH (7.01), TDS (24.1 ppm), NaCl (49.7 ppm), DO ( 6.95 ppm), Conducto (1.6211 µs) and hardness (13.29 ppm), but it is still within the standard of clean water quality, which means that the Water Treatment Plant (WTP) system is proven to be implemented especially for water purposes. Laboratory of the Department of Chemical Engineering, State Polytechnic of Sriwijaya and generally for the needs of the community at an economical price and good quality

Physico-chemical Wastewater Treatment from Complex Organic Substances Using Flotocombs

2019 ◽  
Vol 23 (12) ◽  
pp. 4-8
Author(s):  
B.S. Ksenofontov ◽  
A.S. Kozodaev ◽  
R.A. Taranov ◽  
M.S. Vinogradov
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Organic Substances ◽  
Chemical Methods ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Complex Organic ◽  
Open Reservoir

The issues of extraction of complex organic substances from wastewater using physico-chemical methods of coagulation, flotation, adsorption. At the same time, flotation combines of the KBS type are used at the flotation stage, which make it possible to effectively treat wastewater from suspended pollutants and complex organic substances. At the stage of sorption treatment, a deep extraction of complex organic substances occurs up to trace amounts, which allows to achieve the normative quality of water treatment with the possibility of discharge into an open reservoir.

Experiment on Municipal Wastewater Treatment in Bangkok, Thailand

1986 ◽  
Vol 18 (7-8) ◽  
pp. 79-86 ◽  
Author(s):  
J. Sumiyama ◽  
J. Matsushita ◽  
K. Suwanarat
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Test Plant ◽  
Municipal Wastewater Treatment ◽  
Effluent Water ◽  
Sewer System ◽  
Sewerage System ◽  
Septic Tanks ◽  
New Community

Due to explosive urbanization in Bangkok, it was realized that it would be difficult to adapt the conventional sewerage system to cope with the increased load. It was more feasible to collect wastewater by the existing drains and to adopt a modified aeration method for treatment of typical municipal wastewater, namely effluent from on-site septic tanks. An experimental test plant was constructed to evaluate the treatability of municipal wastewater generated from the major drainage area, in comparison with that of conventional wastewater from a new community with a separate sewer system. The results verified the higher treatability of the municipal wastewater compared to the communal wastewater with respect to effluent water quality, settleability of mixed liquor, solids production, etc.

Study on Energy-Saving Electronic Water Treatment Facility with Automatically Adjustable Operating Voltage

2014 ◽  
Vol 511-512 ◽  
pp. 770-775
Author(s):  
Jun Lei Song ◽  
Fen Fen Shi ◽  
Min Zhang ◽  
Qian Zou ◽  
Shuo Chen ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Energy Saving ◽  
Water Quality Monitoring ◽  
Treatment Method ◽  
Quality Monitoring ◽  
Operating Voltage ◽  
Treatment Facility ◽  
Circulating Water

When wastewater is treated with an electronic water treatment method, hardness, alkalinity and conductivity of the wastewater decrease much slower with time on. If the operating voltage of wastewater treatment is reduced at this time, the purpose of energy saving can be realized while wastewater treatment efficiency is guaranteed. Existing electronic water treatment facilities always realize water treatment with constant low voltages and almost all of them have no optimal design about energy saving, water treatment system rust reduction, water treatment automation, etc. To solve these problems, a new energy-saving electronic water treatment facility is designed in this paper. Based on a low-power SCM MPS430F169 and circuits such as the water treatment voltage control circuit and the voltage and current sampling circuit, the facility establishes a closed-loop system with functions of water quality monitoring and automatic water treatment voltage adjustment. Experimental results show that the facility can realize real-time water quality monitoring in the process of wastewater treatment and automatically adjust operating voltage in line with the water quality, thus significantly reducing unnecessary energy consumption. The facility can be used in fields such as industrial circulating water treatment.

scholarly journals Fe-Al recovery from mine water treatment residuals and product testing for wastewater treatment - phosphate and turbidity removal

2019 ◽  
pp. 56-62
Author(s):  
Laurentiu Razvan Dinu ◽  
Valeriu Robert Badescu ◽  
Gabriela Geanina Vasile ◽  
Ionut Cristea ◽  
Ecaterina Anca Serban ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Mine Water ◽  
Conventional Treatment ◽  
Oxygen Demand ◽  
Metal Species ◽  
Water Treatment Sludge ◽  
Turbidity Removal ◽  
Mine Water Treatment ◽  
The Cost

Mine water treatment scope is to produce an effluent which satisfies the discharge limits according to permits. However, the production of metal-rich sludge is a consequence of the mine water treatment and its disposal as a waste raises the cost of the whole operation, so ways to convert the sludge into marketable products are desirable. For example, mine water treatment sludge can be used for adsorbents or pigments production or some of the sludge components can be extracted and utilized as coagulants. Coagulants were obtained from mine water after partial precipitation of metal species or after conventional treatment, by leaching the sludge with acid. The effectiveness of coagulants considering phosphate, chemical oxygen demand and turbidity is presented in this paper, alongside with some of the drawbacks as observed.

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