نتایج جستجو برای: charcoal filtration

تعداد نتایج: 45119  

2014
Irene Criscuoli Giorgio Alberti Silvia Baronti Filippo Favilli Cristina Martinez Costanza Calzolari Emanuela Pusceddu Cornelia Rumpel Roberto Viola Franco Miglietta

The addition of pyrogenic carbon (C) in the soil is considered a potential strategy to achieve direct C sequestration and potential reduction of non-CO2 greenhouse gas emissions. In this paper, we investigated the long term effects of charcoal addition on C sequestration and soil physico-chemical properties by studying a series of abandoned charcoal hearths in the Eastern Alps of Italy establis...

Journal: :Applied and environmental microbiology 2002
Corinne Le Dantec Jean-Pierre Duguet Antoine Montiel Nadine Dumoutier Sylvie Dubrou Véronique Vincent

The frequency of recovery of atypical mycobacteria was estimated in two treatment plants providing drinking water to Paris, France, at some intermediate stages of treatment. The two plants use two different filtration processes, rapid and slow sand filtration. Our results suggest that slow sand filtration is more efficient for removing mycobacteria than rapid sand filtration. In addition, our r...

Journal: :Water research 2004
H K Shon S Vigneswaran In S Kim J Cho H H Ngo

Ultrafiltration alone can remove only a portion of the effluent organic matter (EfOM) from biologically treated sewage effluent (BTSE). Use of pretreatment not only improves the EfOM removal but also reduces the membrane fouling. In this research, NTR 7410 ultrafiltration membrane was employed to remove EfOM from BTSE. Different pretreatments namely FeCl(3) flocculation and powder activated car...

2013
Ching-Hua Huang

The objectives of this project were to (1) minimize potential analytical errors caused by activated carbon (AC)-catalyzed nitrosamine formation reactions and identify the involved reaction mechanisms, and (2) evaluate the potential of AC-catalyzed nitrosamine formation under AC-based water filtration applications. The goal was to develop effective and practical strategies for the water industry...

2011
N. Kaushalya Herath Yoshito Ohtani Hideaki Ichiura

A study on the treatment of Kraft pulp mill effluent by ozonation alone, and by combined treatment of ozonation preceded by chemical coagulation, activated carbon adsorption or membrane filtration has been conducted. Initial effluent pH was a major factor deciding the treatment efficiency. When ozonation was conducted alone, more than 70% reduction of color and phenolic compounds could be achie...

2013
N. Hemashenpagam

Waste water was collected from the municipal town of Madurai and was subjected to filtration in two different filters. The first filter employed sand for the process of filtration where as the second filter carbon for the same. Finally when the clarified water is drawn out of the filter, it shows that there is a considerable reduction in the physico-chemical parameters then that of the untreate...

Journal: :Asian Food Science Journal 2023

In this study, there were two groups, namely liquid smoke of kusambi and coconut shells with various treatments adsorbent filtration 3 replications. There are three kind treatment for each first is without process adsorbent, zeolite treatment, silica activated charcoal treatment. Analysis variance showed that different types had a very significant effect (P0.01) on antioxidants, total acid, spe...

2004
Chairil A. Siregar Nobuo Ishibashi Tsuyoshi Kato Kazuya Ando

Charcoal is one of the important energy sources in the developing countries. Additionally, it is effective not only in carbon fixation and inactivation in the atmosphere but also in environmental conservation when used as an agent such a soil conditioner or growth accelerator of plants. However the utilization of charcoal in forestry sector, especially industrial plantation, has not been introd...

2007
Victoria Y. Fan Amy Smith David Wallace Amy Banzaert Charles Mathis

In Haiti, wood and wood charcoal are common fuels for cooking. This practice has contributed to deforestation, leading to erosion and fatal floods. The availability of charcoal made from a different source other than wood, such as agricultural waste, might provide Haitians with an alternative, more sustainable fuel, which in turn may reduce fuel prices. MIT students have developed various metho...

2008
Suresh Panthee Shyam P. Lohani

Introduction: Adsorption capacity of activated charcoal to paracetamol was determined at simulated gastric environment, pH 3.4 and simulated intestinal environment pH 7.2. Three formulations of activated charcoal; powder, capsule and suspension were tested. Paracetamol was derived from tablet to simulate in vivo intoxication conditions. Methods: Activated charcoal and paracetamol were mixed at ...

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