The domestically produced activated carbon with a price of 7500 yuan/ton is available on October 7. The specifications of the activated carbon include a pH range of 5-7.5, ash content between 8-10%, moisture ≤3%, bulk density between 400-500, specific surface area >900 M2/g, iodine absorption value >800, and particle size of 250 mesh. The validity period for this quote is 7 days. The provider of the quoted information is Henan Kaijie Water Treatment Co., Ltd.