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Drinking ground water in many areas of Pakistan is contaminated by dissolved arsenic. The consumption of arsenic-contaminated water causes many carcinogenic diseases. Hence, this work aims to estimate and eliminate arsenic from ground water used for drinking purposes in the Layyah District (Punjab – PK). For the purpose, water samples were collected from selected areas of the aforementioned district, and average arsenic concentration was estimated to be 95 ppb. Thereafter, to remove dissolved arsenic contents (As3+and As5+), sulphur-doped copper ferrite, i.e., S–CuFe2O4adsorbent, was developed viaa hydrothermal approach. To justify its effectiveness, structural morphology of the adsorbent was evaluated viaXRD, FT-IR, Raman and AFM analysis, whereas its stability was investigated viaTGA analysis. Its purity and chemical compositions were determined using SEM, EDX and XPS techniques. Magnetic properties of S–CuFe2O4were examined viaVSM. The results indicated that spinel cubic morphology of S–CuFe2O4facilitates the effective adsorption of arsenic contents. For complete elimination, arsenic contents were first converted to an arsenomolybdate complex (AMC) and then removed from water viaadsorption on S–CuFe2O4. The adsorption was found to be spontaneous with ΔG= −13.51 kJ mol−1, and adsorption kinetics for the AMC were well fitted by pseudo second order with a correlation coefficient (R2) of 0.99997. Adsorption isotherm and electrostatic interaction between S–CuFe2O4and AMC were confirmed and revealed using Langmuir and Temkin models with R2= 0.97021 and R2= 0.87431, respectively. Results suggested that one gram of S–CuFe2O4is enough to deliver 275 gal of arsenic free water.