Harinaivo Anderson Andrianisa

• PhD
• Head of Department at Institut International d'ingénierie de l'eau et de l'environnement

Increasingly, WEEE is seen as a source of secondary resources that can be exploited in order to contribute to the circular economy (Cucchiella et al. 2015; Parajuly & Wenzel, 2017). To date, several studies have focused on the recovery of the different fractions (plastic, glass, metals, etc.) of these types of waste. The metal fraction attracts par...

Waste electrical and electronic equipment (WEEE) is defined as “urban mines” due to the various recoverable minerals they contain. However, current WEEE classification methods are mostly limited to their physical characteristics, focusing on collection, transport, and treatment purposes rather than on valorization. In the present study, our aim is...

The review discusses the advancements in vermifiltration research over the last decade, focusing on pollution removal mechanisms, system performance, the fate of filter components, and by-products. Vermifiltration has demonstrated remarkable capabilities, particularly in treating highly contaminated wastewater with Chemical Oxygen Demand (COD) leve...

Spatial planning and resource allocation are decisive factors in the effective delivery of sanitation services, especially in urban contexts. In low-income countries, the use of Geographic Information Systems (GIS) in the design and decision-making process in the delivery of such services is still very limited. This study, conducted in Ouagadougou,...

Access to sanitation has become an important element for improving the health of populations in developing countries. In Burkina Faso, 12% of the population in rural areas has access to latrine and 65% practice open defecation (OD). In a bid to eliminate this unsanitary practice and enhance sanitation access in rural areas, the government embraced...

In the context of monitoring progress towards SDG target 6.2, a household is counted to have access to sanitation if it uses at least basic sanitation services. Several approaches have been employed to help rural communities to climb up the sanitation ladder such as Community-led Total Sanitation (CLTS), whose primary target is to end open defecati...

The role of climate in the Coronavirus disease 2019 (COVID-19) transmission appears to be controversial, as reported in earlier studies. In Africa, the subject is poorly documented. In this study, over the period from January 1st, 2020 to September 31, 2022, the daily variations in cumulative confirmed cases of COVID-19 for each African country (54...

Although access to sanitation has been recognized as a fundamental human right, 3.6 billion people do not enjoy this right globally. In this group, the practice of unhealthy sanitation behaviors, such as open defecation (OD), is very common. To alleviate this problem, several governments in low-income countries have adopted Community-led Total Sani...

Open-defecation (OD) is one of the most widespread sanitation practices in low-income countries. This practice often causes diarrheal diseases and 760,000 deaths per year. To eradicate OD, several approaches have been developed, including Community-Led-Total Sanitation (CLTS) which is a participatory and community approach. The specificity of CLTS...

The COVID-19 pandemic, which outbroke in Wuhan (China) in December 2019, severely hit almost all sectors of activity in the world as a consequence of the restrictive measures imposed. Two years later, Africa still emerges as the least affected continent by the pandemic. This study analyzed COVID-19 prevalence across African countries through countr...

The value chain (VC) system is a key way to address important sanitation technological and institutional gaps in production and service delivery and could constitute a natural platform for development actions and also serve as a market systems approach to improve access to safely-managed sanitation. It has been suggested that sanitation could boost...

The value chain (VC) system is a key way to address important sanitation technological and institutional gaps in production and service delivery and could constitute a natural platform for development actions and also serve as a market systems approach to improve access to safely-managed sanitation. It has been suggested that sanitation could boost...

Dans la perspective d’améliorer l’accès aux services de base en eau potable, hygiène et assainissement (EHA), le Mali a fait de ce secteur une priorité depuis 2006. Cette étude avait pour objectif de mener une analyse critique du diagnostic de l’accès aux services de base EHA et l’impact des déplacés internes de la crise politique et sécuritaire de...

We extend an ordinary differential equation (ODE) model for the meningococcal meningitis disease to a partial differential equation (PDE). This extension istwofold: (i) consideration of two modes of contamination, namely through a direct transmission (human to human) and an indirect transmission (via free‐living bacteria). (ii) consideration of the...

It has been reported that persistent cyanide pollution occurs in artisanal small-scale gold mining (ASGM) catchment areas in Burkina Faso. In the present study, logistic regression (LR) and Regression Kriging (RK) methods were applied to predict cyanide pollution hazard at the catchment level as well as to determine the most vulnerable areas to pri...

The fate of filter materials and microbial communities during the vermifiltration process were studied for 5 months while treating the concentrated greywater. Four filters were filled with 10 cm gravel of which a layer of medium size gravel (5 cm thickness, aggregate size 20-40 mm) at the bottom and a layer of coarse gravel (5 cm thickness, aggrega...

Vermifiltration technology using Eudrilus Eugeniae could be an alternative low-cost option for the treatment of urban grey water, which is highly polluted with high concentrations of surfactants, sodium and cooking oil. In this study, the effects of these pollutants on performance of a vermifiltration system was tested over a period of 6 to 8 weeks...

This study reports on the cyanide degrading bacteria (CDB) identified from artisanal mining sites and their free cyanide (FCN) degradation kinetics in aqueous medium. CDB were isolated from soil and water samples contaminated with FCN. The CDB were mainly dominated by Pseudomonas aeruginosa, Citrabacter sp., Providencia sp. (BAB-6345), Providencia...

This study reports on the cyanide degrading bacteria (CDB) identified from artisanal mining sites and their free cyanide (FCN) degradation kinetics in aqueous medium. CDB were isolated from soil and water samples contaminated with FCN. The CDB were mainly dominated by Pseudomonas aeruginosa, Citrabacter sp., Providencia sp. (BAB-6345), Providencia...

Free cyanide (FCN), a carcinogenic product, is a chemical compound that is widely used without any control in artisanal small-scale gold mining (ASGM) for gold processing. Cyanide-containing leachate is released into the environment without any treatment. The dynamics of released FCN in water and soil in two ASGM-affected catchments were primarily...

Free cyanide (FCN), a carcinogenic product, is a chemical compound that is widely used without any control in artisanal small-scale gold mining (ASGM) for gold processing. Cyanide-containing leachate is released into the environment without any treatment. The dynamics of released FCN in water and soil in two ASGM-affected catchments were primarily...

It has been reported that persistent cyanide pollution occurs in artisanal small-scale gold mining (ASGM)-affected catchment areas in Burkina Faso. In the present study, the logistic regression method was employed to identify the factors that influence the spatial distribution of cyanide pollution as well as to predict the cyanide pollution map ris...

The social status improvement and the degree of integration of the informal recycling sector, by using InteRa, made by the AKAMASOA association interventions at the Andralanitra dumpsite (Antananarivo, Madagascar) was assessed. 20% of the workers from the three activities at the site were interviewed: 325 scavengers, 12 compost producers and three...

The contribution from each filter medium layer in the removal of pollutants from the concentrated greywater treatment by vermifiltration was studied for 7 months. The two filters were made up of cylindrical DN200-PVC pipes and were filled with 10 cm gravel, 20 cm sand and 30 cm fine sawdust from bottom to top. Two hundred Eudrilus eugeniae earthwor...

Cyanide is a chemical that is widely distributed in the environment, mainly as a result of anthropogenic activities. Only small quantities are naturally produced. Most industrial activities use this chemical compound for manufacturing a product as electroplating or for extracting gold. Exposure to cyanide results in negative health impacts to the w...

Soil and water samples were collected from a watershed in Burkina Faso where illegal artisanal gold extraction using cyanidation occurs. The samples were used to evaluate cyanide contamination and the presence of cyanide degrading bacteria (CDB). Free cyanide (F-CN) was detected in all samples, with concentrations varying from 0.023 to 0.9 mg kg−1,...

Since 2007, the primary collection of domestic wastes from households to the transfer stations was removed from the waste management system in Abidjan, capital city of Côte d'Ivoire. The situation has led to the emergence of "private" waste pre-collectors (WPC) to compensate the gap and to respond to urban population needs in terms of public health...

This study aimed to investigate and understand the zero level detection of Escherichia coli at the outlet of an improved waste stabilization pond. Wastewaters were collected from the International Institute for Water and Environmental Engineering (2iE) campus and were subjected to biological treatment. The system included two-stage Anaerobic Reacto...

A comparative investigation was conducted for 10 months with sand and fine sawdust vermifilters and a control unit to treat concentrated greywater generated from a poor urban household in Ouagadougou, Burkina Faso. Each of the filters was made up of cylindrical DN200-PVC pipes and filled with 10 cm of gravel at the bottom. On top of the gravel laye...

The treatment of greywater collected from an urban slum area of Ouagadougou, Burkina Faso, by vermifiltration (VF) was investigated using locally available sawdust as bedding material and Eudrilus eugeniae earthworm. The filtration system was made up of layers of sand, and fine and coarse gravel from the top to the bottom, which was spread inside a...

The potential of activated sludge to catalyse bio-oxidation of arsenite [As(III)] to arsenate [As(V)] and bio-reduction of As(V) to As(III) was investigated. In batch experiments (pH 7, 25 degrees C) using activated sludge taken from a treatment plant receiving municipal wastewater non-contaminated with As, As(III) and As(V) were rapidly biotransfo...

The behaviour of As(III), As(V), MMA(v) and DMA(v) in batch activated sludge process were investigated. Experiments were carried out by using aerobic and anoxic reactors with an initial As concentration of 100 microjg I(-1). Under aerobic condition, As(III) was oxidized to As(V) within 9 hours, some part of MMA(v) was methylated to DMA(v) and some...