La reunión por los 36 meses del proyecto run4life se llevó a cabo el 2-3 de junio. Todas las presentaciones y discusiones se hicieron en línea, como ocurre actualmente en casi todas partes del mundo. Fue interesante escuchar que todas las áreas piloto incluidas en el proyecto están progresando y que la gente ya se está mudando a las casas con sistemas de saneamiento separativo en Helsingborg, Gent, Sneek y Vigo. Todos esperamos con ansias el último año del proyecto y estamos a la expectativa de los resultados que obtendremos de él.
The 36 month meeting during June 2-3 for the run4life project was like everything else held like an online meeting. All presentations and discussions were made online. It was interesting to hear that all the pilot areas included in the project were progressing and people are moving into the separating houses in Helsingborg, Gent, Sneek and Vigo. We all looking forward to the final year of the project and the exciting results we will get from it.
A new study assessed the inactivation of Ascaris eggs under various conditions and observed that the exposure of Ascaris eggs to elevated pH (10.5–12.5) at temperatures <27.5 °C for >70 days had no effect on egg viability. To accelerate the inactivation of STH, an increase in the treatment temperature is more effective than pH increase. Alkaline pH alone did not inactivate the eggs but can enhance the effect of ammonia, which is likely to be present in organic wastes.
Earlier this week, a few members of Kretsloppsteknik hosted a group of SIDA’s International Training Programme participants in Uppsala. NIRAS on behalf of SIDA implements a number of International Training Programmes. Kretsloppsteknik is involved as part of this program through NIRAS with focus on participants from both Asian and African countries. During these visits, we teach, present, and do technology demonstration through field visits talking about safe nutrient recycling, source-separating sanitation systems, management of organic wastes, socio-technical systems analysis, etc.
In this seminar, moderated by Alejandro Jiménez of the Stockholm International Water Institute, different aspects of employment in the sanitation sector are discussed. Rémi Kaupp from WaterAid tells us about the findings presented in a new WHO report on the Health, Safety and Dignity of Sanitation Workers. Martin Mawajje from the University of KwaZulu-Natal (South Africa) describe how the emptying services in informal settlements can be formalised using a case from Kampala, Uganda as example. Daniel Ddiba, from the Stockholm Environment Institute tells us about a tool they have developed called REWAMP that can estimate and compare the circular economy potential of sanitation derived products from different sanitation technologies. The last presenter is Cecilia Lalander from our group that gives an example on how black soldier fly larvae treatment can be implemented by a sanitation entrepreneur.
“Ask not what employment can do for
sanitation – ask what sanitation can do for employment”.
Commemorating World Toilet Day 2019, Sida and partnersincluding SEI, SLU, WaterAid, SIWI, Univ of KwaZulu-Natal and SuSanA invite
you to an inspirational webinar about the excellent yet untapped
drivers for business, entrepreneurship and job opportunity that the sanitation
value chain represents. While doing so, we will bring attention to
critical challenges that workers in the sanitation industry often face and the
needed actions being taken to tackle them.
Come and join the conversation on Thursday 21 November at 14:00-15.30 CET to learn more about improving
the business of sanitation, for the sanitation workforce and the global
communities they serve.
Björn Vinnerås and
Annika Nordin have together with R Hasan, S Shakoor and I Keenum compiled
current knowledge regarding Salmonella. Our focus in the chapter has been the
effect upon salmonella in relation to current practices and available treatment
technologies for reduction of Salmonella in
wastewater fractions can be divided into three main types: chemical, biological
and thermal. When comparing the inactivation of Salmonella spp.
with Escherichia coli,
the latter is somewhat more resistant to most treatments and can therefore be
used as a proper indicator for salmonella during treatments. Salmonella has several
genetically-driven responses to stress related to the inactivation treatments,
which increase survival during extreme conditions. In this chapter the
inactivation time for salmonella in relation to pH, ammonia concentration and
temperature is presented. For pH, generated inactivation chemical substances
aid in the inactivation: at higher pH uncharged ammonia is the most active
molecule enhancing inactivation while at low pH carbonate and organic acids
both increase the efficiency of inactivation. For heat inactivation, increased
dry matter content increases the time of survival. Biological treatments affect
the survival, while also decreasing the number of viable Salmonella over time.
However, the effect of the biological treatment is difficult to monitor and
quantify and therefore extended treatment durations are recommended for
biological treatment if the treatment is not combined with chemical or thermal
We were at the Hashemite University in Jordan last week, teaching a group of young students how we can safely recycle different household waste fractions. As part of this week-long course, we organised a day of interactive seminars and a role playing game to improve awareness among the students about the psychology, decision making, and socio-technical aspects of recycling waste.
This week, we (Sahar Dalahmeh, Mikael Pell, Annika Nordin, Cecilia Lalander, and Prithvi Simha) are in Jordan, conducting a 1-week course on recycling of various household waste fractions. The course is given at the Hashemite University, located about 50 km away from the capital city Amman. A group of about 20 very enthusiastic and inquistive students are learning about various topics such as wastewater microbiology, hygienisation, urine diversion and dehydration, vermi- and black soldier fly composting, on-site wastweater treatment, etc.