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Design and full phosphorus budget for a batch struvite precipitation reactor for 100 people, calculated from a deposited script. SIMULATED, NOT MEASURED. The reactor is calculated to recover 87.8% of urine phosphorus at pH 9.0 and 2.0 h residence, producing 2.31 kg of struvite per person per year, and stops paying on fertiliser value alone when magnesium oxide exceeds 1.23 USD per kg.
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William Alexander Aldred (2026) studied this question.
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