连云港市东临黄海是有名的海盐产区。海盐生产过程中的废渣盐碱皮,又称盐石膏,年产量约有3万吨,再加上相邻各县产盐区还有2万吨,总计约5万吨,成了盐业生产的公害。充分利用这些盐业废渣生产建筑材料对发展建材生产有一定的经济价值。我 The Yellow Sea in the east of Lianyungang City is a famous sea salt producing area. The salt residue in the sea salt production process is also known as salt gypsum, which is also known as salt gypsum. The annual output is about 30,000 tons, plus 20,000 tons of salt in neighboring counties, totaling about 50,000 tons, becoming salt production. The public hazard. Making full use of these salt industry wastes to produce building materials has a certain economic value for the development of building materials production. I