scholarly journals PENERAPAN TEKNOLOGI PENGOLAHAN LIMBAH KELAPA SEBAGAI PUPUK ORGANIK DAN NATA DE COCO

2018 ◽  
Vol 3 (1) ◽  
pp. 90-97
Author(s):  
Darma Bakti ◽  
Ridwansyah ◽  
Isman Nuriadi
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Community Service ◽  
Environmental Sustainability ◽  
Organic Fertilizer ◽  
Waste Water Treatment ◽  
Raw Material ◽  
Limited Information ◽  
Treatment Equipment ◽  
The University

Community service activities is one of the obligations that must be implemented by lecturer at the university sabagai one aspect of Tri Dharma Perguruan Tinggi. The activity was carried out by a Team of Community Service entitled "The Application of Coconut Waste Processing Technology as Organic Fertilizer and Nata de Coco" is a devotion activity involving two partners, namely Bakti Karya Farmer Group and Mekar Jaya Farmer Group are two groups of farmers who are active in cultivation and coconut cultivation in Desa Asahan Mati, Tanjung Balai Sub-district of Asahan Regency. Problems faced is the low quantity and quality of coconut production caused by the limited information about the culture culture of coconut cultivation, especially aspects of pest control and fertilization. In addition, the presence of coconut straw waste in the form of midrib and leaves and coconut water that is very large to be a problem because it has the potential to cause environmental pollution and become a pest of nests. . In order to solve the problems of both partners, this activity will be conducted in the form of lectures, discussions, practices and introduction of coconut chopping machine in the form of leaf and stem to be used as raw material of organic fertilizer, hybrid coconut seeds and coconut waste water treatment equipment as nata de coco . After the implementation of the dedication activity to the partner community has been able to make organic fertilizer bokashi by utilizing the waste of coconut plants by digging the compost cutting machine that introduced, the practice of hybrid coconut cultivation, and waste water treatment of coconut to nata de coco. The results of these activities can increase hybrid coconut production while maintaining environmental sustainability,

Application of the UASB-Reactor for Anaerobic Treatment of Paper and Board Mill Effluent

1985 ◽  
Vol 17 (1) ◽  
pp. 61-75 ◽  
Author(s):  
L H A Habets ◽  
J H Knelissen
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Energy Savings ◽  
Hydraulic Retention Time ◽  
Waste Water Treatment ◽  
Anaerobic Treatment ◽  
Raw Material ◽  
Uasb Reactor ◽  
Seed Sludge ◽  
Uasb Reactors

Within the holding of Bührmann-Tetterode NV, 7 Dutch paper and board mills are operating, all of them using mainly waste paper as raw material. While three of them completely closed their watercircuits, two other mills put into practice biological waste water treatment namely anaerobic and anaerobic/aerobic. Number 6 is realising an anaerobic plant this year and for number 7 research is still being carried out, dealing with several unfavourable aspects. In September 1981 research for anaerobic treatment (UASB reactors) was started. After good results had been achieved on laboratory scale (301), further investigations were started on semitechnical scale (50 m3). In both cases the anaerobic seed sludge granulated after a while and loadings up to 20 kg COD/m3.d could be handled. COD-removal was 70 per cent, even when the hydraulic retention time was only 2.5 hours. In April 1983 a 70 m3 practical scale UASB reactor was started up at the solid board mill of Ceres. In October 1983 a full scale plant was started up at Papierfabriek Roermond. This plant consists of a 1,000 m3 UASB reactor and a 70 m3 gasholder. It has been designed and constructed by Paques BV and is used for pretreatment of effluent, in order to reduce the loading of the activated sludge plant. Besides energy savings on the oxygen input, about 1 million m3/year of biogas is being generated and is used for steamproduction. Both plants are working satisfactorily. Investment costs appeared to be relatively low. At Ceres, pay-out time is 1.5 year, while at Papierfabriek Roermond waste water treatment is cheaper than before, although capacity is doubled.

scholarly journals Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1443
Author(s):  
Yi Wei ◽  
Wei Chen ◽  
Chuanfu Liu ◽  
Huihui Wang
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Adsorption Capacity ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Ammonia Solution ◽  
Langmuir Model ◽  
Raw Material ◽  
Maximum Adsorption Capacity ◽  
Chemical Fiber

It is challenging work to develop a low-cost, efficient, and environmentally friendly Cr(VI) adsorbent for waste water treatment. In this paper, we used hemicelluloses from chemical fiber factory waste as the raw material, and prepared two kinds of carbon materials by the green hydrothermal method as adsorbent for Cr(VI). The results showed that hemicelluloses hydrothermally treated with citric acid (HTC) presented spherical shapes, and hemicelluloses hydrothermally treated with ammonia solution (HTC-NH2) provided spongy structures. The adsorption capacity of the samples can be obtained by the Langmuir model, and the adsorption kinetics could be described by the pseudo-second-order model at pH 1.0. The maximum adsorption capacity of HTC-NH2 in the Langmuir model is 74.60 mg/g, much higher than that of HTC (61.25 mg/g). The green hydrothermal treatment of biomass with ammonia solution will provide a simple and feasible way to prepare adsorbent for Cr(VI) in waste water treatment.

scholarly journals Nanopraticle Ferriferous Hydrosol as an Advanced Reagent for Waste Water Treatment

2017 ◽  
pp. 164-170
Author(s):  
Danas Budilovskis ◽  
Mudis Šalkauskas
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Metal Removal ◽  
Waste Water Treatment ◽  
Heavy Metal Removal ◽  
Raw Material ◽  
Extractable Fraction ◽  
Iron Scrap ◽  
Treatment And Disposal ◽  
Waste Repositories

A new procedure for electroplating waste water treatment using a waste iron scrap by-product for nanoparticle ferriferous hydrosol (FFH) preparation is presented. FFH which contains Fe(II) and Fe(III) was employed for neutralization and heavy metal removal from electroplating wastewater as well as for decontamination of concomitant pollutants such as phosphates, organic compounds, residual oils, dyes and detergents. It is possible due to the simultaneous operation of several different mechanisms: sorption, coagulation, reduction, fertilization and etc. The method is suitable for the purposes of waste water treatment and disposal in compliance with environmental laws and is implemented in some East and West European countries. The results were proved in accredited laboratories in various countries. According to the composition of its water extractable fraction, remaining waste sludge could be safely deposited in urban waste repositories or used as a raw material for production of various technically useful products such as ceramics, pigment, etc. Treated water may be reused in technological processes.

The new technology of waste water treatment by using bioreactors with bio membranous movable bed – biochips

2020 ◽  
Vol 10 (3) ◽  
pp. 276-292
Author(s):  
Maria Y. Savostyanova ◽  
◽  
Lidia А. Norina ◽  
Arina V. Nikolaeva ◽  
◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Water Resources ◽  
Waste Water Treatment ◽  
Combined Treatment ◽  
Research Work ◽  
Pollution Level ◽  
Waste Waters ◽  
Treatment Facilities ◽  
Movable Bed

Retaining of water resources quality is one of the global ecological problems of the modern time. The most promising direction in solving the problem of water resources protection is the reduction of negative environmental influence of waste water from production facilities by upgrading the existing water treatment technologies. To treat utility water, technical and rain water from site facilities of Transneft system entities, the specialists developed and approved standard technological diagrams, which are used in producing treatment facilities. The standard technological diagrams provide for all necessary stages of waste water treatment ensures the reduction of pollution level to normal values. However, during operation of treatment facilities it was established, that to ensure the required quality of waste water treatment with initially high levels of pollution, the new technological solutions are necessary. The author presents the results of scientific-research work, in the context of which the best affordable technologies were identified in the area of the treatment of waste water with increased content of pollutants and non-uniform ingress pattern. On the basis of the research results the technical solutions were developed for optimization of operation of existing waste water treatment facilities by means of using combined treatment of technical and rain waters and utility waste waters and applying bioreactor with movable bed – biochips. The use of bioreactor with movable bed allows the increase in the area of active surface, which facilitates increase and retention of biomass. Biochips are completely immersed into waste waters, and biofilm is formed on the entire volume of immersion area, facilitating retention of biomass and preventing formation of sediments. Due to mixing the floating device with biofilm constantly moves along the whole area of bioreactor, and, in doing so, speeds up biochemical processes and uniformity of treatment. The advantages of a bioreactor with movable bed – its active sludge durability against increased and changing pollutant concentrations, change of waste water temperature and simplicity of application – ensured the possibility of its use for blending utility waters, technical and rain waters.

REVIEWS OF ELECTROCOAGULATION PROCESS ON WASTE WATER TREATMENT TECHNOLOGY

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Taty Hernaningsih
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Removal Efficiency ◽  
Industrial Waste ◽  
Waste Water Treatment ◽  
Treatment Technique ◽  
Industrial Waste Water ◽  
Strong Current ◽  
Current Voltage ◽  
Electrocoagulation Process

Waste water treatment by industry usually uses chemicals that may lead to additional environmental pollution load. On the other hand, water demand increases and environmental regulations regarding waste water disposal requirements that apply more stringent. It is necessary for waste treatment technique that accommodate this requirement. Electrocoagulation process is a technique of wastewater treatment that has been chosen because the technique is environmentally friendly. This paper will review some of the research or application electrocoagulation process which is conducted on industrial waste water. Types of industrial waste water that is to be reviewed include: industries batik, sarongs, textiles, palm oil, slaughterhouses, food, leather tanning, laundry, pulp and paper. Overview reviewed in this research include the waste water treatment process in several processing variations such as: change in time, electricity and kind of electrodes. The results of the research with electrocoagulation process in the industry are the removal efficiency of TSS, COD, BOD5, Chrome, phosphate, surfactants, color turbidity influenced by several factors including time, strong current, voltage, distance and type of electrode and pH. The results of the study with electrocoagulation process in the industry is the removal efficiency of TSS, COD, BOD5, chromium, phosphate, surfactant, turbidity color that are influenced by several factors including time, strong current, voltage, distance and type of electrode and pH. It is hoped the information presented in this article can be a reference for similar research for the improvement of research on the process ektrokoagulasi.Key words: elektrocoagulation, removal eficiency, environmental friendly

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