{'fraction_non_alphanumeric': 0.0256797583081571, 'fraction_numerical': 0.019637462235649546, 'mean_word_length': 4.867256637168142, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Removal of Copper from a Contaminated Soil by Washing with TCAS Reagent

This study reported the feasibility of flushing remediation of Cu contaminated soil using thiacalix arenetetrasulfonate (TCAS) reagent. Batch experiments were performed to test the factors influencing remediation of Cu contaminated soil. The effects of pH value, initial conentration and contact time.on the removal capacities of Cu by TCAS reagent had been studied. The results showed that the TCAS reagent was effective for removal of Cu from the contaminated soil, the optimum TCAS concentration is 0.3% for soil treatment, attaining 89.4% of Cu in the pH range of 10.0-11.0 within 24h.