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Wastewater A Resource that Can Pay Dividends for People, the Environment, and Economies

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The world’s wastewater – 80 percent of which is released into the environment without adequate treatment – is a valuable resource from which clean water, energy, nutrients, and other resources can be recovered, according to a World Bank report released today to mark World Water Day.

The report, Wastewater: From Waste to Resource, calls for smarter wastewater management, including reuse and resource recovery, and looks at wastewater projects around the world which have paid dividends for people, the environment, and economies in the short and long-term.

Efficiently investing in wastewater and other sanitation infrastructure is crucial to achieve public health benefits, improve the environment, and enhance quality of life. Safely managed water, sanitation and hygiene (WASH) services are an essential part of preventing disease and protecting human health during infectious disease outbreaks, including the current COVID-19 pandemic.

At a time when 36 percent of the world’s population lives in water-scarce regions, wastewater treatment for reuse is part of the solution to water scarcity and pollution problems,” said Jennifer Sara, Global Director, World Bank Water Global Practice. “Once treated, it can be used to replace freshwater for irrigation, industrial processes, or recreational purposes. It can also be used to maintain the environmental flow and by-products from its treatment can generate energy and nutrients.”

Wastewater treatment offers a double value proposition, the report says. In addition to environmental and health benefits, wastewater treatment can bring economic benefits through reuse in different sectors. Its by-products, such as nutrients and biogas, can be used for agriculture and energy generation. And additional revenues generated from this process can help cover water utilities’ operational and maintenance costs.

In this sense, wastewater should not be considered a ‘waste’ anymore, but a resource. This is at the core of a circular economy, an economic system aimed at minimizing waste and making the most of resources. As cities continue to grow, future urban development requires approaches that minimize resource consumption and focus on resource recovery, following principles of the so-called circular economy,” said Diego Juan Rodriguez, the report’s author and a Senior Water Resources Management Specialist at the World Bank. “One of the key advantages of adopting circular economy principles in wastewater management is that resource recovery and reuse could transform sanitation from a costly service to one that is self-sustaining and adds value to the economy. This will help countries bridge the funding gap in sanitation to achieve the Sustainable Development Goals.”

The report casts a light on wastewater management experiences in the Latin America and Caribbean (LAC) region, which are already reaping benefits. For example:

By using treated wastewater instead of groundwater, the San Luis Potosi power plant in Mexico cut costs by 33 percent, leading to US$18 million in savings over six years for the power utility. For the water utility, the additional revenue from selling treated wastewater helped cover operations and maintenance costs.

A wastewater treatment plant in Cusco, Peru, saves US$230,000 a year in transporting biosolids (nutrient-rich organic materials resulting from the treatment of domestic sewage in a wastewater treatment facility) and landfill fees due to an agreement with the local compost producer. The compost produced with the plant’s biosolids is then used as part of the water management project to preserve the Piuray Lake.

The Brazil-based CAESB water and wastewater utility’s use of biosolids for corn production led to higher-than-average grain yields and was 21 percent more efficient than mineral fertilizers.

The operator of the La Farfana wastewater treatment plant in Santiago, Chile, after investing US$2.7 million to retrofit the plant, was able to sell biogas, accounting for an annual net profit of US$1 million for the business.

The report recommends incorporating wastewater interventions as part of river basin planning, and pairing them with policies, institutions and regulations that foster this paradigm shift. Wastewater treatment plants need to be gradually repurposed as water resource recovery facilities, while also exploring and supporting innovative financing and sustainable business models that leverage the potential revenue streams of resource recovery from wastewater.

Only 30 to 40 percent of the LAC region’s collected wastewater is treated, resulting in negative impacts on both human health and the environment.

The report shows what’s possible when governments at all levels apply circular economy principles to their wastewater challenges. For example, in the city of La Paz, Bolivia, the national and municipal governments, as well as the water utility, with support from the World Bank and other development partners, are working together to incorporate circular economy principles in the design of the La Paz wastewater treatment plant. The goal is to address water pollution and public health issues caused by low levels of wastewater treatment and unregulated use in agriculture.

We are happy to see that the necessary transformation is well under way – wastewater policies in many countries already include reuse and resource recovery, and we hope more countries will follow suit. Countries need to scale up action,” said Rodriguez.

The report was funded in part by the Global Water Security & Sanitation Partnership (GWSP) and the Public-Private Infrastructure Advisory Facility (PPIAF).

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Archipelagic Economies: Spatial Economic Development in the Pacific

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A new World Bank report on the challenges facing the Pacific region’s outer island communities identifies investment in people and livelihoods as a key for inclusive economic growth.    

Archipelagic Economies: Spatial Economic Development in the Pacific looks at the challenges Pacific governments must address to provide services and infrastructure to populations spread across hundreds of islands spanning the vast Pacific Ocean. The report puts forward a series of practical steps that countries can take to overcome these challenges in a way that supports resilient and inclusive economic growth.

“Many Pacific countries are faced with significant challenges in delivering services and connecting remote, outer island communities; with difficult decisions around resources and how to best invest often limited resources into outer island communities,” said the report’s lead author, World Bank Lead Economist for Fiscal Policy and Sustainable Growth Robert Utz.

“This report aims to provide Pacific governments, development partners and decision-makers with evidence to assess options for fostering development for the people in those outer islands, so they can make stronger contributions to the larger economic development of the whole country.”   

The report identifies six guiding economic policy principles:

1)     Policy solutions that seek to achieve equitable increases in living standards need to be grounded in an understanding of the economic implications of the Pacific region’s unique economic geography.

2)     Outer islands’ development should be assessed from a spatial perspective; one that considers interactions with the country’s main island and the region beyond.

3)     A balanced approach that combines investments in urban areas to accommodate migration from outer islands to main islands with support for outer island populations is likely to achieve better welfare and equity outcomes than an approach that neglects one side or the other.

4)     Growth-enhancing investments should be guided by clearly-identified opportunities, rather than by a desire to try to equalize economic opportunities across islands.

5)     With limited scope to close the gap in economic opportunities between outer and main islands investments to promote livelihoods and human development should be given preference.

6)     Outer islands are subject to a complex political economy of intra-island and outer island-main island relationships that need to be considered in development interventions.

“This is an important and timely study,” said Denton Rarawa, Senior Economic Advisor at the Pacific Islands Forum Secretariat. “The current COVID-19 crisis has highlighted the need to address the institutional, service delivery and capacity gaps of nations across the Pacific. As we strive for greater vaccination rates and begin to think about how we’d like to rebuild after the pandemic, I believe this report has a lot to offer the future of the Pacific, especially in our efforts to leave no one behind.”   

The Archipelagic Economies report is a companion publication to the World Bank’s Pacific Possible series, which in 2017 and 2018 looked at opportunities for economic growth in Pacific Islands Countries across key sectors including tourism, fisheries, and labour mobility. 

The World Bank works in partnership with 12 countries across the Pacific, supporting 87 projects totaling US$2.09 billion in commitments in sectors including agriculture, aviation and transport, climate resilience and adaptation, economic policy, education and employment, energy, fisheries, health, macroeconomic management, rural development, telecommunications and tourism.

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Global economic recovery continues but remains uneven

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The global economy is growing far more strongly than anticipated a year ago but the recovery remains uneven, exposing both advanced and emerging markets to a range of risks, according to the OECD’s latest Interim Economic Outlook.

The OECD says extraordinary support from governments and central banks helped avoid the worst once the COVID-19 pandemic hit. With the vaccine roll-out continuing and a gradual resumption of economic activity underway, the OECD projects strong global growth of 5.7% this year and 4.5% in 2022, little changed from its May 2021 Outlook of 5.8% and 4.4% respectively.

Countries are emerging from the crisis with different challenges, often reflecting their pre-COVID 19 strengths and weaknesses, and their policy approaches during the pandemic. Even in the countries where output or employment have recovered to their pre-pandemic levels, the recovery is incomplete, with jobs and incomes still short of the levels expected before the pandemic.

Large differences in vaccination rates between countries are adding to the unevenness of the recovery. Renewed outbreaks of the virus are forcing some countries to restrict activities, resulting in bottlenecks and adding to supply shortages.  

There is a marked variation in the outlook for inflation, which has risen sharply in the US and some emerging market economies but remains relatively low in many other advanced economies, particularly in the euro area.

A rapid increase in demand as economies reopen has pushed up prices in key commodities such as oil and metals as well as  food, which has a stronger effect on inflation in emerging markets. The disruption to supply chains caused by the pandemic has added to cost pressures. At the same time, shipping costs have increased sharply.

But the Interim Outlook says that these inflationary pressures should eventually fade. Consumer price inflation in the G20 countries is projected to peak towards the end of 2021 and slow throughout 2022. Wage growth remains broadly moderate and medium-term inflation expectations remain contained.

The report warns that to keep the recovery on track stronger international efforts are needed to provide low-income countries with the resources to vaccinate their populations, both for their own and global benefits.

Macroeconomic policy support is still needed as long as the outlook is uncertain and employment has not yet recovered fully, but clear guidance is called upon from policymakers to minimise risks looking forward. Central banks should communicate clearly about the likely sequencing of moves towards eventual policy normalisation and the extent to which any overshooting of inflation targets will be tolerated. The report says fiscal policies should remain flexible and avoid a premature withdrawal of support, operating within credible and transparent medium-term fiscal frameworks that provide space for stronger public infrastructure investment.

Presenting the Interim Economic Outlook alongside Chief Economist Laurence Boone, OECD Secretary-General Mathias Cormann said: “The world is experiencing a strong recovery thanks to decisive action taken by governments and central banks at the height of the crisis. But as we have seen with vaccine distribution, progress is uneven. Ensuring the recovery is sustained and widespread requires action on a number of fronts – from effective vaccination programmes across all countries to concerted public investment strategies to build for the future.”

Ms Boone said: “Policies have been efficient in buffering the shock and ensuring a strong recovery; planning for more efficient public finances, shifted towards investment in physical and human capital is necessary and will help monetary policy to normalise smoothly once the recovery is firmly established.”

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Financing Options Key to Africa’s Transition to Sustainable Energy

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A new whitepaper outlining the key considerations in setting the course for Africa’s energy future was released today at the 2021 Sustainable Development Impact Summit. The report, “Financing the Future of Energy,” outlines Africa’s electricity landscape and financing options in context with the global drive to reduce carbon emissions.

Africa’s power sector will play a central role in the transition from fossil fuel-driven power generation to a renewable-strong energy mix. According to the whitepaper written in collaboration with Deloitte, the migration to a multi-stakeholder-oriented net-zero power grid is being driven by “the 3Ds:”

  • Decarbonization: moving from fossil fuel sources to renewables
  • Decentralization: Shifting from centrally managed generation, transmission, and distribution to decentralized systems
  • Digitalization: Leveraging digital technology to advance the transition

The report contends that new coalitions and investments with developed nations and NGOs including the World Economic Forum must coordinate and enable countries to leapfrog existing technologies and infrastructure.

“The need for digitally smarter utility platforms and sustainable development programs will guide global leaders in helping to shape equitable and inclusive recovery programs,” said Chido Munyati, Head of Africa at the World Economic Forum. “The entire continent remains vulnerable, but this whitepaper offers a view on what are viable financing options that exist today for clean energy sustainability and equitable recovery for all of Africa.

Funding will be the biggest hurdle to ensuring Africa’s sustainable transition to Renewables at scale; there are many financing solutions available,” said Mario Fernandes, Director, Africa Power Utilities and Renewables, Deloitte. “Africa’s winners will be the ones that are able to leverage what exists while creating an enabling environment for the private sector through a Renewables Energy Investment facility.”

Case studies in China and India showed that financing solutions for a clean energy transition often involve long cycles. Economic booms in these countries resulted in a significant shift in carbon emissions. Since similar economic booms are expected across Africa, the report highlights how crucial it is to anchor growth in technologies that can enable lower emissions.

While Africa’s contribution to greenhouse gas emissions from fossil fuel significantly lags behind those of other continents, it still carries a huge potential to accelerate the transition to a net-zero future. Currently, half of the continent lives without adequate access to electricity. As energy demands increase, the energy gap could be bridged through clean energy alternatives, if the financing solutions are employed now.

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