Mark and Focus analysis
Algeria’s 60 Percent Water-Reuse Target Needs More Than Treatment Capacity
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Algeria wants to recover and reuse 60 percent of treated wastewater while expanding sanitation capacity by about 35 percent. Reaching the target requires tertiary treatment, storage, conveyance, demand agreements and verified end use.
Algeria’s Ministry of Hydraulics has set a target to recover 60 percent of treated wastewater for productive use. The target sits alongside a large asset program: 237 sanitation systems are in operation and 76 more are planned, which the ministry says would raise national treatment capacity by about 35 percent to 1.514 billion cubic meters a year.
The scale is significant, but treatment capacity and water reuse are different outcomes. A plant can meet its discharge standard while most of its effluent still returns to the environment. Recovery requires further treatment where necessary, storage, pumping, pipelines, quality assurance and a user whose demand matches the volume and timing of supply.
The existing base shows both progress and distance
The ministry reports that reuse rose from 50 million cubic meters in 2023 to 111 million cubic meters in 2024, equal to 19 percent of treated volume. Of the reused daily flow described by the ministry, about 60 percent went to agriculture, 39.7 percent to urban uses and 0.3 percent to industry.
Those figures give the 60 percent target a baseline, but they also make definitions essential. The public record should state whether the target refers to all treated effluent, technically recoverable volume or water actually delivered to end users. Each denominator creates a different investment requirement and a different claim about performance.
Agriculture is the largest strategic market because the ministry says it consumes more than 70 percent of mobilized water each year. Reclaimed water can protect freshwater and desalinated supplies, but farmers need predictable quantity, acceptable salinity and nutrient conditions, clear crop rules and a price that reflects pumping and distribution costs.
Tertiary treatment is one link in a longer chain
The minister has called for wider use of tertiary treatment so that reclaimed water can serve more agricultural uses under applicable standards. Higher treatment quality can remove a barrier, but it should be matched to the intended use. Over-treating every flow raises energy and cost; under-treating it creates health, soil and market risks.
Demand agreements are equally important. A farm district, municipality or industrial user must state the volume it can take, the seasons and hours when it needs water, the quality it requires and the price or service obligation it can sustain. Those commitments determine whether storage and conveyance assets will be used. They also show where public support is buying a durable water-security benefit rather than constructing capacity without a dependable recipient.
Algeria already has practical reuse schemes. The ministry identifies irrigation supplied from treatment plants in Tlemcen and Oran, along with projects under construction for farmland and roadside green space. These examples can reveal the infrastructure beyond the plant: reservoirs, pumping stations, distribution networks and agreements between the sanitation operator and user.
The strongest national program would organize projects by catchment and demand. A treatment plant near a large, steady irrigation area has a different business case from one whose users are distant or seasonal. Storage can bridge daily variation, while crop calendars and drought conditions change the value of supply. Industrial reuse may offer a smaller volume today but a steadier demand and greater ability to pay for reliability.
A delivery ledger can protect the target from becoming a headline
The ministry has asked for continuous monitoring of treatment plants, completion of current projects and faster launch of new ones. A public delivery ledger should separate four measures: treatment capacity, compliant effluent, recoverable water and water actually delivered for reuse.
It should also report quality compliance, energy use, storage, network availability and interruptions at the receiving end. These indicators would show whether the 76 new systems are increasing sanitation coverage, creating reusable supply or both.
Algeria has placed reclaimed water inside its national water-security strategy alongside desalination, dams and demand management. The 60 percent target can make that role concrete. Its credibility will come from the physical and contractual links that turn treated discharge into dependable water for farms, cities and industry.
Take-Out
Treatment creates potential supply; reuse begins only when water of the required quality reaches a committed user through infrastructure that can operate every day.
Questions and answers
What readers should know
- What is Algeria’s new reuse target?
- To recover and reuse 60 percent of treated wastewater.
- What treatment capacity is planned?
- The ministry says 76 new sanitation systems would lift total capacity to 1.514 billion cubic meters a year, about 35 percent above the current level.
- How much water was being reused in 2024?
- The ministry reports 111 million cubic meters a year, equal to 19 percent of treated volume.
- Where does reused water go?
- The reported mix is dominated by agriculture, followed by urban uses, with a very small industrial share.
- What must be measured separately?
- Treatment capacity, compliant effluent, recoverable volume and water actually delivered to a verified end user.