In this study a cost-effective adsorbent was prepared from phosphate rock waste. An abundant phosphate rock waste was generated, as by-product, from phosphate concentration processes. Phosphate rock waste was activated by chemical activators (including  different concentration of HNO3 and  NaOH or with both). The developed adsorbent was characterized using different techniques (XRD, XRF and SEM). Batch experiments were conducted to test the heavy metal ions (Cd+2, Cu+2, Ni+2, Pb+2 and Zn+2) removal efficiency by the developed adsorbent. The adsorption process was evaluated as a function of various operating parameters such as contact time, solution pH, temperature, initial metal ion concentration, and adsorbent dosage. The results concluded that activation phosphate rock waste was effective with 2M HNO3, and the developed adsorbent is suitable for effective removal of Cd+2, Cu+2, Ni+2, Pb+2 and Zn+2 from aqueous solution. Initial uptake of these metal ions increases with time and reaches equilibrium at 60 min, while the optimum adsorbent dosage and solution temperature were 0.5 g 100 mL-1 and 25°C, respectively. The adsorption process was pH-dependent with high adsorption capacity at pH 7. The experimental isotherms data were analyzed using the Langmuir, and Freundlich   models. The data obtained from adsorption isotherms of metal ions at different time fitted well to linear form of Langmuir model.

Neck torture is a common issue torturing Singaporeans from changing foundations. Broadened periods spent slumped over computers, got together with the speedy moving nature of city life, can release annihilation on your spinal plan, inciting coziness, anxiety, and, surprisingly, cerebral agonies.

In Singapore, numerous people experience the evil impacts of back and neck torture, now and again given present-day lifestyles that incorporate expanded times of sitting, sad positions, or real strain. Fortunately, chiropractic treatment offers a suitable response for these ordinary issues, helping individuals achieve a disturbance-free life.

Neck torture is a normal issue that impacts different people, whether thinking about a lamentable position, broadened periods at a workspace, or stress. In Singapore, chiropractic treatment offers a convincing, normal response for lessening neck torture and overseeing general prospering. Chiropractic treatment for neck pain depends on the urgent drivers of neck torture as opposed to veiling discretionary effects, giving critical length help.